Forgive her and take her back? Worst advice in this thread, and there's been a lot of bad advice in here. You need to have some self-respect. Forget about her, move on, and enjoy life.
No offence dude but its not that bad of advice if he wanted it to work. U want to end it? More power to you but fact is if he wanted to it could work. My apologies for being the voice of reason and not suggesting drunkin sex with random girls