Should I tell my friend that her boyfriend (my co-worker) cheated on her?

[Anonymous]

We're not best friends but she's a great person who I respect. Recently, her boyfriend who I work with, broke up with her for another girl he had been cheating on her with. He wanted to start dating that girl but she didn't take him seriously, so he got back together with my friend because he didn't wanna be alone. I found out he started sleeping with the other girl wayyy before he broke up with his girlfriend. When he broke up with his girlfriend, it's because he wanted a serious relationship with the girl he had just been hooking up with. And even now that he's getting back together with his girlfriend, he's still hung up on the other girl and I think he's going to keep cheating.

My friend doesn't know ANYTHING about any of this.

I'm so angry about all of this but I have to work with this guy. If I tell my friend, he'll know it was me and I'll have three new enemies at work (him, his friend and the girl he's cheating with). Plus, she'll probably take him back anyway.

[SteveSmith1985]

YES. If this is a friend. no question. So you make three new enemies at work. Big deal. I think it says a lot about YOU if you choose not to tell your friend. This is a no brainer.

[kkirk4442]

If she will take him back anyway, then there is no sense in telling her. If she won't end the relationship anyway, then she is getting what her choices give her.

[Twalli]

My sister's friend was with a guy like that. They weren't sexual then, at 12. He would break up with her to ask other girls out and then when he was rejected he'd ask her out again and she'd take him back. I think it happened 5 times before she refused to take him back.

[Nachowedgie]

Obviously