Sir, I don't blame you for being bitter. It's always easy to bring out the "I Told You So" and "Well, Look At Yourself Now" phrases when they are called for. But, if you really ever loved her, you would've helped her in a heart beat.
Don't get me wrong, she made her own decisions that led her to exactly what she had coming. She was wrong to go for bad boys when they are, apparently, "bad" (who knew?). But, when someone asks for help when they make a mistake like that, that's when you show who the better man is. That's when you prove what kind of guy you really are.
Well, you showed your colors. Maybe you made a mistake, and I don't blame you for what you did. She deserved it. But, you could have shown that you were much more than what you did show. Hey, but that's what living is all about. Making mistakes, and learning from them. You'll get it right next time . And maybe she will too.
Peace, bro.