Honestly, I know dem feels...had the same situation awhile back (but then with a girl obviously). especially hurts when you see them kissing and shit, and the romantic pictures and posts that never seem to stop coming by on facebook. love is cruel that way sometimes.
not really sure what advice i can give you...except that time heals all wounds. try to get to know some other guys in your area...its good to distract yourself....and who knows? maybe you meet someone else you like just as much if not more, and who feels the same way about you!
if you need to talk to someone though feel free to hit me up...i totally understand what you're going through, and it used to help me alot to just say fuck it and rant it all out of my system. xD