Micro Cheating: The Honest Definition, the Behaviors That Actually Count, and What to Do About It

If you've been searching "micro cheating," you're probably either trying to figure out whether something your partner is doing crosses a line, or trying to figure out whether something you're doing does. The internet is unhelpful in both directions. Half the articles treat every flirty DM as cheating; the other half dismiss the concept as moral panic. Neither is right, and neither helps you have a real conversation about it.

This article is the honest version. We've traced the term to its actual origin (which isn't where most articles say it is), separated the behaviors that are genuinely warning signs from the ones that probably aren't, and built playbooks for both the partner who's worried and the partner who's been accused. We've cited the actual peer-reviewed research that exists (it's thinner than the listicles suggest, and we'll say so), and we've engaged honestly with the critics who argue the concept can be pathologizing.

A note about why this article exists. Emira makes a $9.99 couples assessment for couples who want to understand each other clearly. Questions about what counts as cheating, where the boundaries are, and how to bring up concerns are exactly the kinds of things our assessment is built to surface before they become breaches. We mention this because the most useful frame for "micro cheating" is usually "do you and your partner share the same definition," not "did they break the rules."

Where the term actually came from

Most articles say "Australian psychologist Melanie Schilling coined the term 'micro cheating' in 2017." That sentence is almost right and entirely wrong.

The term predates Schilling by about a decade. Urban Dictionary has an entry for "micro cheating" from 2008. In June 2016, writer Mélanie Berliet published a viral Thought Catalog piece titled "33 Ways Your Boyfriend Is Micro-Cheating (And Totally Getting Away With It)" that spread the term widely. In 2024, Berliet added a note to her original article clarifying that the piece was satire, written because she found the whole concept somewhat absurd. The "33 signs" listicle format that every article on this topic uses comes from a piece the author herself has since disowned as a joke.

Schilling popularized the term in its current sense in an August 15, 2017 HuffPost Australia article by Emily Blatchford. Her actual definition, quoted from that piece:

"Micro-cheating is a series of seemingly small actions that indicate a person is emotionally or physically focused on someone outside their relationship."

She also said something most articles skip:

"The first thing you need to establish is the intention behind the behaviour. Secrecy is the tell-tale sign. Micro-cheating is a subtle betrayal and it needs secrecy to fuel its fire."

For accuracy: Schilling is best known as the relationship expert on Married at First Sight Australia. She works in the dating-coach space; "psychologist" requires specific credentialing in Australia that some sources don't verify before attributing.

Why this matters: most articles you'll read pretend "micro cheating" is a clinically defined concept with a precise origin. It isn't. It's a popular-psychology term, popularized by a media personality, in a tradition that started with a satirical listicle. That doesn't mean the underlying concept is meaningless. It means we should be honest about what it is.

What the research actually says (which is: less than the listicles suggest)

This is the part every micro-cheating article skips. "Micro cheating" is not a recognized concept in peer-reviewed relationship psychology. Wikipedia itself notes the term has "limited scholarship available as of the mid-2020s" and is "discussed mostly in the mass media and on the Internet."

What does exist, that's actually relevant:

McDaniel, Drouin & Cravens (2017). Do you have anything to hide? Infidelity-related behaviors on social media sites and marital satisfaction. Published in Computers in Human Behavior (vol. 66, pp. 88-95). This study of 338 married/cohabiting individuals created the Social Media Infidelity-Related Behaviors (SMIRB) scale, a 7-item validated instrument measuring online behaviors that could constitute or lead to infidelity. The full paper is available via PubMed Central. Their findings: fewer than 10% of participants reported the more serious behaviors (sharing intimate information online, chatting with exes, hiding online behavior); 12% would be uncomfortable if their partner saw their messages; lower relationship satisfaction predicted these behaviors. This is the closest thing to validated research on what most people mean by "micro cheating."

Glass & Staeheli (2003). Not "Just Friends": Rebuilding Trust and Recovering Your Sanity After Infidelity. Free Press. Shirley Glass spent decades researching extramarital relationships before publishing this widely-cited book. Her definition of infidelity: "any secret sexual, romantic or emotional involvement that violates commitment to an exclusive relationship." Glass identified three warning signs that "friendships" are sliding into affairs: emotional intimacy with the third person greater than with the spouse, secrecy, and sexual chemistry. This three-part framework predates "micro cheating" by 14 years and is more rigorous than any of the listicle definitions.

Perel (2017). The State of Affairs: Rethinking Infidelity. HarperCollins. Esther Perel defines infidelity as a "violation of trust" while emphasizing the role of unmet needs, identity, and desire. She independently identifies the same three core components as Glass: secrecy, sexual chemistry, emotional involvement.

Kruger et al. (2013). Was That Cheating? Perceptions Vary by Sex, Attachment Anxiety, and Behavior. Published in Evolutionary Psychology (vol. 11, pp. 159-171). Empirical evidence that what people classify as cheating varies systematically with attachment style and gender. This supports the position that micro-cheating is partly in the eye of the beholder.

Moller & Vossler (2015). Defining Infidelity in Research and Couple Counseling: A Qualitative Study. Published in Journal of Sex & Marital Therapy (vol. 41, pp. 487-497). Found that even clinicians disagree on what constitutes infidelity. Reinforces the lack of consensus.

The honest summary: what most people call "micro cheating" is real, but the framework that holds up under research is Glass's three-part test (secrecy + emotional intimacy + sexual chemistry), not a list of 33 behaviors. We'll build the rest of this article on that framework rather than the satirical listicle.

The two-axis test: when something is actually micro cheating

Most articles treat the question as binary: this list of behaviors is cheating, this list isn't. The honest answer is two-dimensional.

Axis 1: Is it secret or concealed? Does your partner know about it? Could they see your messages without you bracing? Would you be comfortable telling them about it?

Axis 2: Does it carry sexual or emotional investment beyond a normal interaction? Are you flirting, building intimacy, seeking validation, or fantasizing about this person? Or is it ordinary social interaction?

The four quadrants:

	Sexual/emotional investment	Just normal interaction
Concealed	Micro cheating, real warning sign	Worth examining (why are you hiding it?)
Not concealed	Worth a conversation about boundaries	Probably not micro cheating

This is more useful than a 33-item checklist because it tells you why a behavior matters, not just whether it appears on someone else's list. A flirty DM your partner can see is different from a flirty DM you've deleted. A friendly text to an ex about logistics is different from a long emotionally intimate conversation hidden from your partner.

Schilling's own original definition centered on secrecy: "Micro-cheating is a subtle betrayal and it needs secrecy to fuel its fire." Glass's research-grounded framework centers on the same thing. The behaviors are downstream; the secrecy and the investment are what makes them what they are.

The behaviors people usually mean (organized honestly)

Rather than a 33-item listicle, here are the behaviors most commonly called "micro cheating," organized by what makes each one a problem.

Digital interactions:

Liking or commenting on revealing/sexualized photos of someone you're attracted to, usually a problem only when concealed or focused selectively on one person
Following sexual-content creators or attractive strangers met in person, depends on volume, pattern, and whether you're concealing it
DM-ing or texting an ex, depends entirely on content, frequency, and disclosure
Sending selfies or sexting, almost always a problem (this crosses into actual infidelity for most couples)
Maintaining a dating-app profile while in a committed relationship, almost always a problem
Deleting messages, hiding chats, getting defensive when partner sees your screen, the concealment itself is the warning sign

In-person behaviors:

Removing your wedding/engagement ring when going out without your partner
Prolonged flirting at bars or social events
Lingering physical touch (knee, lower back) with someone you're attracted to
Lying about your relationship status to someone
Trying noticeably hard to impress one specific person

Emotional behaviors:

Sharing more emotional intimacy with someone outside the relationship than with your partner
Routinely complaining about your partner to one specific person
Maintaining a "secret friendship" your partner doesn't know about
Private inside jokes with one specific outside person you keep from your partner
Seeking emotional validation from one person who's not your partner

Cover-up behaviors:

Lying about who you were with or where you were
"Business meetings" that have no actual business
Saving someone in your phone under a fake name
Hiding photos of your partner from your desk or phone when this person is around

Apply the two-axis test to each one. A single "like" on someone's photo is probably nothing. Repeatedly liking and commenting on one person's sexualized content while hiding it from your partner is a real warning sign. The behavior is the same; the context determines the meaning.

The questions everyone Googles, answered honestly

Is liking Instagram photos cheating?

A single like, no. A pattern of liking one specific person's sexualized content while hiding it from your partner, with sexual or emotional investment behind it, yes. The like itself isn't the issue; the pattern, the concealment, and the underlying investment are. Most "is liking photos cheating?" debates collapse the difference between these.

Is texting another woman (or another man) micro cheating?

Depends entirely on what you're texting about and whether your partner knows. Texting a friend, coworker, or family member of any gender is normal. Texting a specific person regularly, with content you'd hide from your partner, with emotional or sexual investment beyond the friendship, that's micro cheating, regardless of whether anything physical has happened.

Is sexting micro cheating?

Sexting someone other than your partner has typically crossed the line into actual infidelity for most couples, not just "micro." Sexting is sexual content; the "micro" prefix doesn't really apply. Most therapists and researchers in the infidelity literature would categorize sexting with a non-partner as straightforward infidelity, not a gray-area behavior.

Is micro cheating forgivable?

Often, yes. Couples recover from micro-cheating-level breaches regularly. The factors that predict whether recovery works: honest acknowledgment from the partner who crossed the line (not minimization or counter-attack), genuine willingness to change the behavior, and rebuilding of the agreement about what's okay going forward. The factors that prevent recovery: continued concealment, defensiveness, treating the conversation as an attack rather than a legitimate concern.

Is micro cheating a red flag for future infidelity?

Sometimes. McDaniel, Drouin & Cravens (2017) found that lower relationship satisfaction predicted social-media infidelity-related behaviors, suggesting these behaviors often correlate with deeper relationship problems rather than just causing them. The pattern that's more predictive of future infidelity isn't a specific behavior, it's a sustained pattern of secrecy combined with emotional or sexual investment outside the relationship. One isolated flirty exchange isn't predictive. A persistent pattern that includes concealment is.

What's the difference between micro cheating and emotional cheating?

Emotional cheating typically refers to sustained emotional intimacy with someone outside the relationship, often greater than the intimacy with the partner. Micro cheating is broader and includes smaller behaviors. The overlap: many things called "micro cheating" are the early stages of what would become emotional cheating if continued. Our emotional cheating article covers the deeper version of this question.

What if my partner is doing things I'd never consider cheating?

This is one of the most important questions. The honest answer: different people have genuinely different definitions of what crosses a line, and those differences are usually invisible until a behavior surfaces them. Kruger et al. (2013) found that what people classify as cheating varies with attachment style. Your partner might genuinely not realize that something they consider normal is something you consider a breach. The conversation isn't "you're cheating", it's "I didn't realize we had different definitions, and now we need to talk about it."

A self-test: the SMIRB scale

The closest thing to a validated instrument for measuring "micro cheating" behaviors is the Social Media Infidelity-Related Behaviors (SMIRB) scale developed by McDaniel, Drouin and Cravens (2017). It's a 7-item self-report that measures online behaviors that could constitute or lead to infidelity. The items they measured:

Sending intimate messages to people other than your partner
Sharing intimate information online with someone other than your partner
Hiding your online behavior from your partner
Chatting privately with an ex
Discomfort if your partner read your private messages
Having a private profile or account your partner doesn't know about
Lying to your partner about online interactions

If you'd answer "yes" or "uncomfortable" on multiple items, the framework suggests something worth examining. Note that this is research on behaviors associated with infidelity risk, not a diagnostic tool for "micro cheating" specifically; we're sharing it because it's the closest thing to validated science on the topic, and it's structured around the same secrecy-and-investment axis as Schilling's original definition.

The partner-with-concerns playbook

You think your partner might be doing something that crosses a line. Here's how to bring it up.

1. Be specific about what you saw, not what you think it means. "I noticed you've been liking [specific person's] photos a lot lately, and I noticed that the last few times your phone was face-down when I came in" is a different conversation than "I think you're cheating on me." The first opens a conversation. The second starts a fight.

2. Ask about intent, not just behavior. Schilling's original framing emphasized intent: the same behavior can mean different things depending on what's driving it. "What's the context here? What's been going on?" is more useful than "you're not allowed to do that."

3. Name what you actually need. Not "stop doing X" (which can read as controlling) but "I'd feel more secure if Y" or "I think we need to talk about whether we have different definitions of what's okay."

4. Distinguish boundary from control. A healthy boundary is "here's what I need to feel okay in this relationship." Control is "you don't get to interact with people I don't approve of." If you find yourself listing rules about who they can text, that's drifting toward control. If you're naming a feeling and asking for a conversation, that's a boundary.

5. Be open to your partner having a different read. They may genuinely not see the behavior as you're seeing it. That doesn't mean they're gaslighting you, and it doesn't mean you're wrong. Different people have different definitions, and finding the shared definition is half the work.

6. Notice the defensiveness vs. the listening response. A partner who hears your concern and gets curious ("I didn't realize that bothered you, tell me more") is workable. A partner who attacks you for bringing it up, accuses you of being controlling, or refuses to engage at all is signaling something different. The way they respond to the conversation is often more informative than what they actually did.

If the underlying pattern is sustained concealment plus active sexual or emotional investment elsewhere, and your partner won't acknowledge it or engage with the concern, you're in different territory than micro cheating. Our piece on how to rebuild trust in a relationship covers that deeper conversation.

The accused-partner playbook (the one most articles skip)

Your partner has named a behavior of yours as crossing a line. Here's how to respond.

1. Take a beat before responding. The reflexive response is defensiveness. ("It's nothing." "You're overreacting." "Everyone does this.") That response is almost always the wrong one. Take ten seconds. Even if you're not in the wrong, defensiveness usually escalates the conversation in a way that makes everything worse.

2. Ask what specifically concerned them. Get the actual content of their concern, not your assumption about it. "Can you tell me what you noticed?" or "What's making you feel that way?" lets you respond to the real concern, not the imagined one.

3. Do an honest internal check. Is the behavior something you'd be comfortable with your partner doing? Have you been concealing it? Is there emotional or sexual investment in this person you've been avoiding examining? The two-axis test applies to your own behavior too.

4. If you crossed a line, name it specifically. Not "I'm sorry you feel that way" (which isn't an apology). Not "I'm sorry, but it didn't mean anything" (which dismisses the concern). A real acknowledgment looks like: "You're right, I have been hiding those messages from you. I haven't crossed into anything physical, but I've been getting something out of that interaction that I wouldn't want you to see. I'm sorry. I want to talk about what to do about it."

5. If you genuinely don't think you crossed a line, say that without attacking the concern. "I hear that this bothered you, and I want to take it seriously, but I don't see it the same way. Can we talk about what's actually going on for you?" This isn't dismissal; it's honest disagreement that stays open to the conversation.

6. Resist the urge to make this their problem. Even if you think they're overreacting, getting defensive or counter-accusing ("well you talk to your coworker all the time") doesn't address the actual question. Your partner naming a concern is information about how they feel, regardless of whether you agree with their interpretation.

7. Be honest with yourself about the concealment specifically. Concealment is the single most consistent marker across every framework, from Schilling's original definition to Glass's "Not Just Friends" three-part test. If you've been hiding things from your partner, that's the part to look at first, regardless of whether the underlying behavior was "really" cheating.

When micro cheating is the wrong frame

There's a critique of the micro-cheating concept worth engaging with honestly. Faith Hill, writing for The Atlantic in March 2026, argued that the framework can pathologize ordinary social behavior and create surveillance dynamics in relationships that aren't healthy.

There's real truth in this. Some couples use "micro cheating" as a label to justify monitoring each other's phones, controlling who their partner can text, and treating normal interactions as suspicious. That pattern isn't protective; it's controlling, and it has its own research literature on the harm it causes.

The honest position: the concept is useful when it surfaces real concerns about secrecy and investment patterns that are actually corroding a relationship. The concept is harmful when it becomes the justification for surveillance and control. The difference is usually whether one partner is naming a felt concern or whether the framework is being used to justify a pre-existing pattern of mistrust.

If you find yourself constantly worried about every text your partner sends, every like they leave on Instagram, every casual interaction with anyone of any gender, that may be a different problem than micro cheating. It may be relationship anxiety, attachment patterns, or a trust rupture from earlier in the relationship that wasn't fully repaired. Our piece on how to stop overthinking in a relationship covers this territory.

When to walk vs. when to work on it

Most micro cheating concerns can be resolved with one honest, specific conversation. Some can't. The factors that distinguish the two:

Workable: Both partners willing to engage with the conversation honestly. The behavior, once named, stops or is renegotiated. The accused partner takes responsibility for the part they're responsible for. The concerned partner doesn't escalate into surveillance. Underlying trust is largely intact.

Not workable: Pattern of concealment continues after being named. Defensiveness or counter-attack instead of engagement. Repeated incidents that follow the same pattern. The accused partner gaslights the concerned partner about what they saw. Underlying contempt or sustained disengagement is present, of which the micro-cheating behaviors are just one symptom.

The cases that don't resolve are usually the cases where micro cheating is a symptom of something larger. Either the relationship has eroded to the point where the partner doesn't want to engage in the work of maintaining trust, or there's an actual affair underneath that the "micro" behaviors were precursors to. Our piece on should I get a divorce covers the deeper decision when these patterns suggest a relationship has reached the end of what's repairable.

FAQ

What is micro cheating in a relationship?

Micro cheating refers to small behaviors that signal someone is emotionally or physically focused on a person outside their relationship, particularly when those behaviors are concealed from their partner. The term was popularized by relationship coach Melanie Schilling in 2017 (and used earlier in satirical contexts). The honest test is whether a behavior involves secrecy combined with sexual or emotional investment in the other person, both Schilling's original framing and the research-based three-part test from Shirley Glass's Not "Just Friends" (2003).

Is micro cheating actually cheating?

It depends on what you mean by cheating. By the strictest definitions (physical or sexual involvement with another person), no. By the broader definitions used in clinical infidelity research (any secret romantic or emotional involvement that violates commitment), often yes. Couples genuinely disagree on this; what matters is whether you and your partner share a definition. Many "micro cheating" arguments are really arguments about different definitions of cheating in the first place.

What are examples of micro cheating?

The behaviors most commonly cited: maintaining a dating-app profile, sexting or sending nudes, regular concealed contact with an ex, deleting messages or hiding chats, removing your wedding ring when out without your partner, sustained flirting that's hidden, sharing emotional intimacy with one specific outside person greater than with your partner, lying about who you're with. The two-axis test (secrecy + sexual/emotional investment) helps distinguish behaviors that are genuinely concerning from ordinary social interactions.

Is micro cheating a red flag?

It can be. Research on social media infidelity-related behaviors (McDaniel, Drouin & Cravens, 2017) found that these behaviors correlate with lower relationship satisfaction, and that sustained patterns of concealment plus outside-relationship investment are associated with higher infidelity risk. A single isolated incident usually isn't predictive. A sustained pattern, especially with concealment, often is.

How do I confront my partner about micro cheating?

Be specific about what you saw, not what you think it means. Ask about intent rather than accusing. Name what you actually need. Stay open to your partner having a different read. The partner-with-concerns playbook in this article covers this in detail. Avoid the trap of demanding to monitor your partner's phone or controlling who they interact with; that's a different dynamic and usually backfires.

Is micro cheating forgivable?

Often, yes. Couples regularly recover from micro-cheating-level breaches when both partners engage honestly. The factors that predict recovery: genuine acknowledgment, willingness to change the behavior, and rebuilding the shared agreement about what's okay. The factors that prevent recovery: continued concealment, defensiveness, and treating the conversation as an attack.

What's the difference between micro cheating and a regular friendship?

A friendship, even a close one with someone you find attractive, isn't micro cheating unless there's concealment combined with sexual or emotional investment greater than what you have with your partner. Glass's three warning signs from Not "Just Friends" (2003) are the clearest test: emotional intimacy greater than with the spouse, secrecy about the interaction, and sexual chemistry. A friendship without those signs is usually a friendship.

Is liking someone's Instagram photos micro cheating?

A single like, no. A pattern of selectively liking one specific person's sexualized content, hidden from your partner, with sexual or emotional investment behind it, yes. Most debates about Instagram likes collapse the difference between an isolated interaction and a sustained pattern with concealment.

A final note

The honest summary of everything above: the concept of micro cheating is real, the listicles overstate it, and the question is almost always less about the specific behavior and more about whether you and your partner share the same definition of what's okay.

If you're worried about something your partner is doing, the most useful move is usually one specific, honest, calm conversation about what you saw and what you need, not a 33-item checklist or a phone audit. If you've been accused of something, the most useful move is usually an honest internal check followed by a real response, not defensiveness or counter-attack.

If you and your partner want to surface where your definitions differ before something becomes a breach, that's exactly what a structured couples assessment is built to do. Emira's couples assessment takes both of you through questions about trust, boundaries, communication, and conflict patterns, and gives you a shared report mapping where you align and where you don't. $9.99 once, lifetime access for both partners.