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6 Surprising Signs That You Have an Unfaithful Partner (Even If They Have No History Of Cheating)

Isla Emmet Isla Emmet | August 31, 2018 | 10 min read

Loyalty is something that is hard to come by these days. It’s not something that you can just expect from everyone. However, it’s something that you always want to demand for in a relationship. You can’t possibly sustain a romantic relationship when there is no loyalty and commitment from both parties. You always want to make sure that you are with someone who is going to be serious about being with you. You want to be with someone who is going to stay loyal and true to you. You want to be with someone who is always going to be faithful. And that’s why you want to play it safe by dating someone who has had no history of cheating. That’s a smart move, right? You’re practically guaranteed of a person who isn’t going to cheat on you, right? Well, not necessarily.

There is always a chance that your partner is going to cheat on you – regardless if they’ve cheated in the past or not. And it’s always devastating whenever you are a victim of cheating in a relationship. You put so much of your faith and trust in a person. But when they cheat on you, you realize that you invested so much of your emotions in the wrong person. And that can be a devastating realization to have. You don’t want to be giving so much of yourself to someone who is only going to throw all of your efforts away. You want to make sure that you aren’t being made a fool of. You owe it to yourself to always make sure that you aren’t being played by anyone. And that’s why you always need to stay on top of your own relationship.

Of course, you wouldn’t want to be someone who just always assumes that your partner is cheating on you. That’s such a cynical and pessimistic way to act in a relationship. However, when your instincts are telling you that something is off, you really need to listen to them. You have to take it upon yourself to make sure that you aren’t being played by the person you’re in a relationship with. And how exactly do you do that? Well, you can choose to keep an eye out for the signs. You can stay vigilant for the following red flags: Coping with betrayal from a partner can be especially difficult when you’ve invested so much emotionally. you need to take the time for self-reflection and consider what this betrayal means for your relationship and your own well-being. Engaging in open conversations with trusted friends or a therapist can also provide valuable insights as you navigate your feelings.

1. They belittle and demean you.

They want to destroy you and make you feel like you are less than you really are. They want to diminish your sense of confidence and self-esteem. They want you to believe that you are completely worthless so that they are able to somehow justify the infidelity and unfaithfulness in their own minds. They will make it seem that since you’re such a terrible human being, it’s okay to cheat on you.

Think about a scenario where your partner consistently undermines your accomplishments. You mention a promotion at work, and instead of celebrating, they brush it off as luck. This constant belittlement erodes your self-worth, making you question your value not just in the relationship but in life. They might even say things like, “I don’t know why you’re so proud, it’s not a big deal,” further pushing the narrative that you’re not deserving of genuine affection. This tactic is a way for them to maintain control and make any potential cheating seem justified. They want you to feel inferior, so their actions appear more acceptable in their twisted logic.

Over time, this behavior can lead you to doubt your own abilities and worth. You might start second-guessing every decision, wondering if you truly are as inadequate as they make you feel. This mental and emotional manipulation creates a dependency where you seek their approval, believing their affection is the only validation of your worth. Recognizing this pattern is vital for reclaiming your self-esteem and setting boundaries that protect you from further harm.

2. They don’t necessarily think in the long-term with regards to your relationship.

They know that there is no chance for your relationship to last for the long haul anyway; and that’s why they don’t really take the time to plan things out with you. They are very impulsive and they are always just living in the moment. They don’t act as if they’re concerned about ensuring the longevity of your relationship at all. They just always stay in the present moment.

You might notice that whenever future plans come up, they’re evasive or dismissive. Conversations about vacations, buying a house, or even attending family events in the future are met with vague responses or outright avoidance. “Let’s not plan so far ahead, who knows what will happen,” they might say, keeping everything temporary. This attitude sends a clear message: they’re not invested in a shared future.

While living in the moment can be exhilarating, it becomes problematic in a committed relationship when it’s used as an excuse to avoid responsibility. Their reluctance to engage in future planning is a red flag that they’re not as committed as you are. This mindset often leads to a lack of effort in nurturing the relationship, as they’re not motivated by long-term goals. Understanding this perspective allows you to address the underlying issues and decide if this relationship aligns with your vision for the future.

Consider how this impacts your emotional security. When your partner doesn’t think long-term, it can feel like they’re always one foot out the door. You deserve someone who actively participates in building a future together, rather than keeping options open. These behaviors indicate a lack of commitment that can be detrimental to the relationship’s growth.

3. They are apologists for other people who have cheated in relationships.

They try to justify cheating and infidelity in the relationships of other people. They will try to make it seem like there are some very justifiable reasons for someone to cheat on another person. And their guilt won’t allow them to just not defend themselves. They are guilty of cheating on you and they want o justify their actions.

When your partner starts defending a friend who’s been unfaithful, it’s time to pay attention. They might say things like, “Well, they weren’t happy, so it’s understandable,” or “Everyone makes mistakes.” These statements reveal a mindset that sees infidelity as excusable under certain conditions. It’s a slippery slope when your partner rationalizes cheating in others, as it often reflects their own beliefs about relationships.

This attitude towards infidelity might extend to anecdotes about celebrities or fictional characters, where they express sympathy towards the unfaithful party. They could bring up movies or books with infidelity themes and side with the cheater, arguing that love is complicated and sometimes requires breaking boundaries. Such discussions should be a wake-up call regarding their views on loyalty and commitment.

Think about what this defense says about their values. By normalizing cheating, they’re indirectly communicating their own potential for similar actions. It’s essential to confront these conversations directly, asking why they feel the need to justify such behavior. Understanding their perspective helps you evaluate whether their moral compass aligns with your expectations for a faithful relationship.

4. They act as if your relationship is a burden.

They don’t treat your relationship like it’s a privilege. In fact, they treat it as if it’s some kind of chore. They treat it as if it’s a kind of burden that they are forced to endure. They are obviously not happy about being with you. They find it to be such a hassle to be in a relationship with you; and that’s why they are likely to cheat on you.

Your partner might express their feelings through subtle complaints or visible disinterest in activities you used to enjoy together. “Do we have to go out again this weekend?” or “I just need some time away” are phrases that might become common. These sentiments suggest they see spending time with you as tedious rather than enjoyable.

Notice their body language during these interactions. Are they disengaged, checking their phone, or showing impatience? These non-verbal cues can be just as telling as their words. Their demeanor might change drastically when engaged in activities with friends or when they’re alone, suggesting a lack of enthusiasm for shared experiences.

Reflect on how this behavior affects your emotional health. Feeling like a burden can lead you to overcompensate, trying harder to win their affection, which isn’t healthy. You deserve a partner who cherishes the relationship, not someone who treats it like an obligation. Addressing these feelings openly can clarify their commitment level and help you decide on the relationship’s future.

5. You catch them flirting with other people a lot.

They have wandering eyes even when they’re in a supposed committed relationship with you. And that’s how you know that something is up. That’s how you know that you’re with someone who isn’t really interested serious about staying in love with you. It’s important to recognize the signs of desire versus love because true affection goes beyond mere attraction. When someone is genuinely in love, their focus remains on deepening the emotional connection rather than seeking attention elsewhere. If you find yourself questioning their commitment, it might be time to reassess the relationship’s foundation.

Flirting isn’t always blatant; it can be subtle gestures or comments that raise red flags. You might hear your partner complimenting someone excessively or being overly touchy in social situations. They might say things like, “You have such a great smile,” while maintaining prolonged eye contact, leaving you feeling uncomfortable and questioning their motives.

Consider their behavior on social media as well. Are they frequently liking or commenting on others’ photos with heart emojis or suggestive comments? This online presence can be just as revealing as in-person interactions, highlighting their desire for external validation and attention. These actions can be hurtful, making you feel sidelined and undervalued.

Understanding the difference between casual friendliness and intentional flirting matters. When their actions consistently cross the line, it’s a sign they’re not fully committed to the relationship. Address these behaviors directly, expressing how they make you feel and what you expect moving forward. This conversation can illuminate their intentions and help you decide if the relationship is worth continuing.

6. They downplay the commitment in your relationship.

They don’t really give much value or validation to the “label” that you have as a couple. They try to downplay the significance of the commitment that you have for one another. They are doing this as a form of safeguard for themselves. When they make it seem like you’re not really in an exclusive relationship, they can justify cheating on you.

When discussing your relationship, they might use ambiguous terms like “hanging out” or “seeing each other,” avoiding words like “boyfriend,” “girlfriend,” or “partner.” This vagueness can lead to confusion about the relationship’s status and their commitment level. Their reluctance to define the relationship clearly is a tactic to keep things open-ended.

They might also avoid making relationship milestones public, such as avoiding introducing you to their family or friends as their partner. When you bring up the topic, they might say, “Let’s not rush things” or “Why complicate it with labels?” These statements reveal their discomfort with commitment and a preference for keeping things undefined.

Think about how this affects your sense of security in the relationship. A partner who avoids defining the relationship might not be ready for the level of commitment you desire. It’s important to communicate your expectations and understand theirs to determine if your relationship goals align. This clarity helps you make informed decisions about the relationship’s future and your emotional investment.

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What signs have you noticed in your relationship that made you question your partner’s loyalty?

Transparency: This article includes AI-drafted content and was reviewed, fact-checked, and edited by our human editorial team, which takes full editorial responsibility for it.

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Isla Emmet
Written by
Isla Emmet

Isla is a relationship writer and former counsellor based in London. With a background in psychotherapy and five years of writing about love, attachment, and emotional wellbeing, she brings a calm and deeply empathetic voice to every piece. Isla believes that understanding yourself is the first step to understanding the people you love. When she is not writing, she is hiking the Scottish Highlands or curled up with a good novel and a strong cup of tea.