Anyone that is telling you to humiliate her, or get revenge on her, is just childish and petty. Trust me, I handled it in probably the worst way I could've and what it taught me is if you walk away without doing anything to hurt her, it will only come back to bite her on the ass, not you- what goes around, comes around. If you want to handle this situation like a real, adult man, you'll walk away from it rather than doing anything stupid, and you really will be better off in the long run.
By doing anything like humiliating her, posting on her fb wall, posting nudie pics, saying anything nasty, you'll probably feel better in the short term, but when you look back on this in a couple of years, you'll wish you handled it with more dignity, so if you want to feel good about yourself in the long run, just leave her and move on.
Oh, and don't let it affect your future relationships or make you bitter about women in general- I know it'll be hard to trust anyone after this, especially when you feel yourself starting to care about another woman and getting close to her, but I've just messed up an amazing relationship by letting my residual trust issues into it- trust me, don't do it!!
Probably true.
I wonder if he any photos of her?
