gphi2k2,
woman, where have you been?
anyway, sure cures for a breakup are:
1. blast Mariah Carey's "Someday" or Alanis Morrisette's "You Oughta Know" REALLY REALLY LOUD.
2. don't go places where you'll see him. (if possible)
3. do all the things he hates...wear the perfume/outfit he hates, listen to the music he can't stand, etc.
4. get yourself looking as hot as possible, go out with your friends, and party your butt off.