re: OT advice thread: How to break a relationship up **UPDATED in OP**(Posted by TheDrunkenTigah on 11/17/12 at 9:18 am to Godfather1)
This is really, really simple. If he cheated on her, and she still wants to be with him, then you don't stand a chance.
The bitchy things she tells you, she wants to say to him but is too weak, because he'll drop her ass. The fact that she wants him more than he wants her is the nail in your plan's coffin, not the opportunity you think it is.