Unrequited Love, Advice?! ?

Okay so, basically I've been in love with my best guy friend for YEARS, and I was sure he felt the same way except I found out that he apparently really likes one of my friends, and that she feels the same way. I dont know what to do, I feel like Ive been slapped in the face with a brick and I just feel horribly depressed. Any advice?Also, he told my bestfriend that he **used to like me.That hurts worse than him just never liking me.How did I blow MY chance, he never said or gave off ANY signal that he liked me.... ?!

Sounds like you blew your chance and he's moved on. The only thing you can do is get over it. It's not a slap in the face, he didn't even know you liked him, you can't blame this on him.