Chucky wrote Girls will be girls - they get offended easily over things.
Jeez, thanks Kevin.
I have to agree with everyone else: as much as this seems to torture you, this is a road you defiantely don't want to follow. It's easier said than done, but you'll feel a lot worse if you get involved with this person any way, shape or form. My ex boyfriend tried it on me until I got so mad I disconnected all my phones and changed my email, and my friend Steven is doing the same thing to his ex-girlfriend, which is alarming to all of us. If she's a negative influence (and she clearly seems to be) you're going to have to find a way to drive this from your mind. I hate to sound trite but it's true: can you talk to anyone about this, even a therapist? And is it possible to find something positive you can go to when you start to (for the lack of a better term, I'm sorry) obsess again? I practice kenpo and throw people around, but that doesn't work for everybody.
It might take a while, but it'll go away