This happened a while ago, and it wasn't cheating, but my boyfriend gave me a tablet and forgot to log out of messenger on it. I had my suspicion up because he was texting next to me a few days earlier and when I casually asked who he was texting he told me it was some girl named Ericka. For some reason I didn't believe him and I asked to see, and he admitted it was a mutual female friend I'll call A. So he lied to me. I got up and left the room so I wouldn't get upset because it was a stupid reason, we talked about it, problem solved. Just dandy.

But wait. I still had a sinking feeling in my gut that didn't go away. About a month(?) Later I was playing on the tablet he gave me when I started getting messages from A. They kept coming in so obviously he was replying. I followed my gut, read the messages. He had lied to me and met up with her and another friend some few days earlier.

For anybody, this would be a whatever thing, but the fact that he blatantly lied to me is what pissed me off. I hate lying. Its a violation of my trust, especially when I'm giving my all at being honest. Going out with guy-friends? I'm letting him know because he's my boyfriend and while he doesn't need to know, I respect him. I don't keep secrets. He never stops me from going but that's not the point of telling him. The point is being open and keeping him updated in my life because he's an important part of it.

He admitted to deliberately keeping it a secret and he wasn't going to tell me, If I remember correctly. He was going to let me find out on my own. His reasoning was that he thought I'd be mad because I disliked A, even though they were friends long before I met her. I also found out that A knew he was lying, knew it was wrong and was apparently angry about it, and despite the fact that her boyfriend did the same thing to her, she kept it a secret from me, which made me more angry. I don't talk to her at all anymore, for various reasons including that one.

Again, that was a solid 5 months ago. It's since been fixed but there's always a tiny part of me that doesn't trust him. It was a game changer at the time because he didn't seem like the kind of person capable of lying to me, a person he deeply cares about. I decided it was something we could get through because of how insevere the situation was.