I know he doesn't care about her anymore (hell, he was the one who ended it), but for some reason, I just can't let this go. He calls her a "miserable bitch" and says she was lousy in bed; he says what we have is so much better and he's so happy to have found me. Why can't I just stop caring about her? Why do I care in the first place? It's eating at me and getting in the way of my feelings for him.
If anyone has a suggestion as to how I can stop being so obsessed with this girl, please, help me.