What Counts as Cheating? The Different Types of Infidelity
Infidelity is one of the most painful experiences a couple can face. It shatters trust, creates deep emotional wounds, and often leaves both partners struggling to make sense of what happened. Unfortunately, infidelity is not uncommon—studies estimate that roughly 20–25% of committed partners will experience an affair in their lifetime (Allen et al., 2005).
But what exactly counts as infidelity? Is it just physical cheating, or does emotional intimacy with someone outside the relationship also qualify? What about online interactions? And, more importantly, why do people cheat in the first place? Understanding these questions can provide clarity and help those affected by infidelity navigate the pain of betrayal.
What Is Infidelity? (Physical, Emotional, Online, and Micro-Cheating)
Infidelity generally refers to a violation of trust or the explicit/implicit rules of exclusivity in a romantic relationship (Mark et al., 2011). In simpler terms, it means one partner engages in a form of intimacy (sexual, emotional, or otherwise) with someone outside the relationship without their partner’s consent. However, it can take several forms:
- Physical infidelity: Engaging in sexual contact outside the relationship, from passionate kissing to intercourse (Atkins et al., 2001).
- Emotional infidelity: Forming a deep emotional bond sharing personal thoughts, feelings, or affection that should be exclusive to the relationship. Emotional affairs often involve confiding in someone outside the relationship, sometimes even “falling in love” (Leeker & Carlozzi, 2012).
- Online infidelity: Engaging in digital romantic or sexual exchanges. This could include flirting in chat rooms, exchanging explicit messages or photos, or maintaining an online relationship through email, social media, or dating apps. Even if no physical contact occurs, online affairs are typically considered infidelity. In fact, research has noted that online infidelity can be as traumatic as in-person cheating for the betrayed partner (Whitty, 2003).
- Micro-cheating: This is a newer term for actions that blur the line between friendliness and cheating. Micro-cheating involves subtle actions that may not amount to an outright affair but still betray your partner’s trust. Examples include secretively texting, saving someone in your contacts under a fake name, frequently engaging with an ex’s social media, or sharing personal secrets with someone outside your relationship. Essentially, if you’re doing something with a third party that you feel you need to hide from your partner, it could fall into micro-cheating (Cravens & Whiting, 2014).
Each couple may define infidelity differently, but any behavior that breaches mutual trust can be experienced as infidelity. Whether it’s a one-night stand or months of secret texting, the betrayal can cause significant emotional pain.
Why Do People Cheat? Common Reasons for Infidelity
When you’ve been cheated on, it’s natural to ask, Why did this happen? Infidelity can feel utterly senseless and unfair. However, cheating is rarely about just one thing. People stray for a variety of reasons, including:
Emotional Disconnection or Unmet Needs
A lack of emotional closeness can lead one partner to seek validation elsewhere. Feeling neglected or sensing that “something is missing”—whether it’s intimacy, respect, or affection—can make someone vulnerable to an affair. Research suggests infidelity is often an attempt to fill an emotional void (Glass & Wright, 1985).
Anger or Revenge
Some people cheat out of anger or resentment. If one partner feels hurt by the other—whether from betrayal, mistreatment, or emotional neglect—they might cheat to “get even.”. In a misguided attempt to “get even” or make their partner feel the same pain, they engage in an affair. This is sometimes called revenge cheating, and while it comes from a place of pain, it ultimately causes more harm than good.
Desire for Novelty and Excitement
Some individuals seek excitement, variety, or adventure outside of their committed relationships (Mark et al., 2011). They may love their partner but crave newness or different experiences. Boredom or a need for variety – wanting experiences with multiple partners – was identified as a significant motivation in many cases of infidelity.
Low Commitment
Not everyone has the same understanding of commitment. Some people enter a relationship without a strong sense of loyalty or exclusivity. In these cases, they may not take monogamy as seriously as their partner (Drigotas et al., 1999).
Situational Factors: Opportunity and Temptation
Sometimes, people who are otherwise happy in their relationships cheat due to circumstances—such as work travel, alcohol consumption, or high-stress environments (Atkins et al., 2001). These factors lower inhibitions and increase the risk of impulsive decisions.
Low Self-Esteem or Validation Seeking
A partner struggling with low self-worth or insecurity may cheat to feel attractive, important, or powerful. They use an affair as a temporary ego boost to feel better about themselves, though in the long run, it often leaves them feeling worse about themselves.
Attachment Issues: Anxious and Avoidant Styles
Research suggests individuals with insecure attachment styles may be more prone to infidelity. Those with anxious attachment may cheat if they feel their needs for closeness aren’t met, seeking affection elsewhere as a misguided way to feel loved.
Those with avoidant attachment may fear too much intimacy and cheat to maintain emotional distance (Allen et al., 2005).
Case Example: When Emotional Infidelity Turns to Betrayal
Maya and Raj had been married for five years when Maya noticed Raj becoming distant. He stayed up late on his computer, seemingly distracted even when they spent time together. One evening, she happened to see a notification pop up on his laptop screen—a flirtatious message from another woman.
Her heart pounded as she opened Raj’s messages and discovered months of explicit online conversations with a woman he had met in a chat room.
When Maya confronted him, Raj immediately became defensive. “It’s not real cheating,” he insisted. “I never met her in person.”
For Maya, it absolutely felt like cheating. Raj had shared intimate, sexual conversations with another woman, all while hiding it from her. His dismissiveness made her pain even worse.
Over time, the damage of the betrayal eroded their connection. Maya felt emotionally abandoned, insecure, and worthless. She lost trust in Raj and began questioning her own judgment
Cheating Is a Choice—But Healing Is Possible
It’s important to remember that cheating is always a choice. Many people in difficult relationships do not cheat. While underlying issues may increase the likelihood of infidelity, there are always healthier ways to address relationship struggles.
Understanding why an affair happened can be an important part of healing. Whether you are the betrayed partner or the one who strayed, working through these issues—often with the help of a qualified therapist—can provide clarity and help prevent future betrayals.
You Are Not Alone
If you are struggling with the pain of infidelity, know that you don’t have to navigate this alone. Whether you’re grappling with betrayal, guilt, or confusion, professional guidance can provide the clarity and support you need.
As a licensed psychologist specializing in couples therapy, I helped numerous couples understand why infidelity happens, rebuild trust, and decide on the best path forward. Whether that means repairing the relationship or finding closure and healing, you deserve expert support during this difficult time.
Dr. Irena offers online therapy for couples in Texas, New York, and PSYPACT states.
Email Dr.Irena @ irena@permalink.com to schedule 10-minute consultation today.
References
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Atkins, D. C., Baucom, D. H., & Jacobson, N. S. (2001). Understanding infidelity: Correlates in a national random sample. Journal of Family Psychology, 15(4), 735–749.
Blow, A. J., & Hartnett, K. (2005). Infidelity in committed relationships II: A substantive review. Journal of Marital and Family Therapy, 31(2), 217–233.
Chopik, W. J., Edelstein, R. S., & Grimm, K. J. (2018). Longitudinal changes in attachment orientations over a 59-year period. Journal of Personality and Social Psychology, 115(4), 769–786.
Drigotas, S. M., Safstrom, C. A., & Gentilia, T. (1999). An investment model prediction of dating infidelity. Journal of Personality and Social Psychology, 77(3), 509–524.
DiDonato (2019) The 8 Main Reasons Why People Cheat, Psychologytoday
Gordon, K. C., Baucom, D. H., & Snyder, D. K. (2004). An integrative intervention for promoting recovery from extramarital affairs. Journal of Marital and Family Therapy, 30(2), 213–231.
Mao A, Raguram A. Online infidelity: The new challenge to marriages. Indian J Psychiatry. 2009 Oct-Dec;51(4):302-4. doi: 10.4103/0019-5545.58299. PMID: 20048458; PMCID: PMC2802380.
Mark, K. P., Janssen, E., & Milhausen, R. R. (2011). Infidelity in heterosexual couples: Demographic, interpersonal, and personality-related predictors. Archives of Sexual Behavior, 40(5), 971–982.
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Whitty, M. T. (2003). Pushing the wrong buttons: Men’s and women’s attitudes toward online and offline infidelity. CyberPsychology & Behavior, 6(6), 569–580.


