stupid, stupid, stupid

I feel humiliated. I feel embarassed, ashamed, and stupid. I gave him everything, even when it was clear that he was fully aware of all the pain he caused and didn't give a rat's ass about it. I convinced myself and the people around me that I could be just friends, that it would somehow work. But, once again, he failed to keep his part of the deal, and in the process, found new and more public ways to humiliate me. I don't deserve it, because I've been the best friend I can be. I supported him in all his stupid decisions, never once made him feel ashamed or depressed about anything, never once made him question his decisions, because I knew everyone else would, and I knew he would need at least one person on his side. I am making enormous efforts to get him the best possible job, to convince my uncle that he deserves a chance even though he broke my heart, to convince my family I'm not crazy by helping him out, and this is what I get? His drunken ass dancing all over some random chick he doesn't even like, straight in front of me, straight in front of my friends? I thought I could be strong enough to at least mask my emotions, but I wasn't, and it kills me to remember the pity in everyone's eyes as he did it and all I could do was just stand by...