My boyfriend of three and a half years cheated on me with my best friend and called me on my birthday while they were in the middle of it

Paid him with sex !!! Lolol

Some friend. That really sucks, dude. But would you have appreciated it if he'd said, hey, look, your girlfriend is cheating on you? And given your screen name, you really need some help.

Was the payment in handjobs, ******** or both? Money ain't going to cut it.

That's pitiful! Did you ask if she paid in pussy or cash? Cause my vote would be pussy. That's the one thing luring enough to destroy a friendship! Dump her and him and find better friends!

Based on your username, you have some major anger management issues. I'm not condoning or justifying what your girlfriend or friend did, but...well, sorry but it happens every day. If everyone killed their partners for cheating, there'd be hardly any people left in the world. I don't think you mean it literally (I hope not), but I do hope you calm down and realize neither one of them is worth it.

Yeah, both folks in OP's life should be removed pronto.

If I were him I would've taken her money and then told you. That bitch would deserve that!

Your friend was in a no win situation. If he tells you he becomes the bad guy, if he doesn't tell you he is the bad guy.

That's life for ya!