A Reddit discussion has brought to light the top three subtle indicators that people noticed before discovering their partner’s infidelity.
While a private investigator has detailed 20 different signs that might suggest your partner is cheating, it seems that three particular behaviors are often repeated in these situations.
Cheating, whether seen as the ultimate betrayal or not, undoubtedly shatters trust, shows disrespect, causes significant emotional distress, and can lead to long-term issues with trust and self-esteem.
For those looking for ways to spot infidelity before it’s confessed, a Reddit thread offers some guidance.
In the r/AskReddit community, individuals have shared their experiences of being cheated on, highlighting the ‘subtle sign’ that led them to discover their partner’s unfaithfulness.
Three signs were frequently mentioned.

One comment, which gained over 6,000 upvotes, mentioned: “His clothes.
“He suddenly had sandals and button up shirts, that I’d tried to get him into for literal years.”
In a poignant admission, the user added: “I guess that means he did listen. All those things I told him he’d look good in, he started wearing as soon as he cared about looking good for someone else.”
Others shared similar stories, with one person noting their ex-husband suddenly developed an interest in fitness and embraced a new wardrobe gifted on his birthday.
“I would have cut holes over all the nipples in every new shirt I had bought for him,” commented another user. Iconic.

Another sign discussed was: “The sudden obsession with their phone and suddenly it’s always on silent.”
While some questioned if keeping a phone on silent is typical behavior, another user mentioned it’s the change in behavior that raises suspicion.
“I think the key there is consistency. If you normally have it on silent, no problemo. After months or years of having it on loud and a sudden change in phone loudness is suss,” echoed another participant.
“Mostly about the phone. An interest in hiding it, silenced, no notifications etc. I went looking for reasons. And did not like what I found. I ended it four years ago,” shared another user.

Another sign mentioned was: “The recent emojis on the keyboard of the phone were [heart] [broken heart] [lips] [couple] [biting lip]. They were not being sent to me..”
“Exact same happened to me! He was driving us to a friend’s BBQ and he asked me send a text, letting the friend know we were on the way. Went to add a smiley face and there they all were,” another shared.
One user advised caution, urging people to consider their partner’s friendships before jumping to conclusions over a kiss emoji.
“For example, me and my buddies are the immature dudes who are always […] sending each other eggplant and kissy emojis, like ‘See you in a little bit big boooiiii’ when about to meet up for a beer or something,” they noted.
Ultimately, these signs are very real and present, as numerous users reflected on past relationships with new insights.

One person noted: “I’m starting to clue in some stuff from my last relationship from a lot of these.”
No one deserves to be cheated on. If it happens, it reflects on the other person, not you.
Remember, if something feels off, trust your instincts—and keep these three warning signs from Reddit users in mind.

