Wanna know something funny???
Half of the guys out there hooking up, and probably more, are actually looking for a committed relationship. It's just that as men, we have an often insatiable sex drive, minus female's to slam the breaks. But while the instant-sex aspect is more apparent, it's certainly not the only desire out there.
I've hooked up
a lot, and I swear a good two-thirds of the guys always wanted something more from it, despite them being post-club drunken encounters. I dated a guy for 4 months after meeting this way, and my best friends have been dating for 5 now after meeting on a dancefloor.
Point being that you should keep your head up, and remain honest with yourself. Eventually you'll find what you're looking for.