Has anybody cheated on you or have you been the cheater yourself?

Both, sadly. I never thought I'd cheat on someone but I did (after being cheated on myself). It's not something I'd ever do again.

A guy has left me when he started crushing on another girl, but there no was actual cheating. It still hurt a lot.

Meh, it was high school we were young and stupid then.

I was cheated on. They left me for other person. I was kind of bummed out. 3 weeks later that person dumped them and they came crawling back to me. However I have too much pride to take someone back after they have done that.

I cheated once because he did it to me. He ended up cheating on me more. I tried to break up with him, but he would blackmail me and manipulate me.

All my other relationships, I did not cheat, but I'm sure they all cheated on me because they assumed I was doing it

Never cheated, probably been cheated on in every relationship. A few were guarantees, a few was just suspicion.

I can only safely say about 2 girls out of the 8 I've dated seriously I hadn't had any reason to suspect cheating.

Myself, I have never physically cheated (hand to god.) I have foolishly flirted a couple times.

I started dating a guy and the day after he slept with someone else. He waited a week to tell me. Glad it wasn't longer.

Not that I know of :/

Both. :(

I might have been when I was in high school but it was far from a serious relationship and regardless it ended very quickly. Looking back on it, idk if she did or didn't, its sad if she did, but I wasn't really hurt. But, then again, I didn't really have any feelings for her.

Today, if I was in a serious relationship and they cheated and didn't tell me, I would probably be hurt, upset, and break up. If they told me though its tougher to decide what to do.

I never cheated and never will, I never was cheated on and hope it will always be that way with future relationships.