Condolences. :'-(
As said before, try to do things, even if if it's going out for a walk and listening to some music. See your friends if you can, and have a moan with them.
Long-term relationships are simultaneously the best, and also the worst things that you can ever experience (when they go wrong, natch) - don't let it get you down dude. :-(
EDITED: 17 Jun 2006 14:37 by STOO