Thank you all, you really keep me from calling him to ask how he's doing.
I've planned a karaoke-night with some of my friends tomorrow, so I'll be able to have some fun in stead of just sitting here at home feeling miserable. In a few weeks, I will go to a party where a gorgeous guy that I've liked for a while will be (it's been ages since I've gone to a party without my ex), and I plan to look absolutely fabulous that evening.
I feel like selling the guitar of my ex (which is still lieing in my bedroom, like about 3 tons of other stuff he left here) and buying an expensive dress of the money, but it's probably a better idea to just give the damn thing back to him.
