I was humiliated, have no friends, and I don't know what to do?

These girls have been picking on me since February of 2009 when I had a crush on this girl's boyfriend. Me and the guy have been friends since the beginning of Freshman year and he and the girl had started hanging out. Needless to say, he stopped being my friend once he found out I didn't like her and umed i was jealous. The truth was I had tried being nice to her by smiling at her in the hallways, but she would just blow me off or just give me a hard stare. Then my friends have told how much of a ***** she was and that she wasn't very nice. So I didn't want anything to do with her. Plus, I was friends with popular kids so I was kind of popular by osiation. Unfortunately that all changed when she started dating the guy. She wasn't really popular before and once she started dating him, she became instantly popular. She has told me she wanted to be friends, but she had been saying **** about me to her closest friends. She was afraid to insult me in front of the popular kids, her boyfriend, or me. So everything became crazy. I was now called the "obsessive stalker psycho" because I wouldn't let go of my crush rejecting me and closing me off as a friend. Her friends had cornered me outside of the bathroom, screamed "EW!!!" whenever they saw me and ran away, and even sent me rude messages to me on Facebook when I just simply asked them why they were saying Ew to me and that they should hate me for not liking their friend. My ex-friend Doug hates me because of my dislike for the girl who he has been friends with since the third grade or according to her. He used to be there for me, but now he hates me along with everyone else in the school. I had said some things about her like she was fat, ugly, and a slut but that was because I was so pissed and I'm usually a nice person, but not when people are naturally bitches and picking on me. Then as for revenge, I tried making a fake facebook account of her and having her say **** about me to prove to all of my friends that she really was the ***** she was. She has insulted my friends, made fun of them, and talked about me behind my back. This girl who used to be my friend even admitted that she talked about me. But this girl I was friends with found out about the account, and posted a status about me, totally embarring me. It was the worst feeling ever. And I'm still not over it nor the fact that my crush dumped me as a friend. It's weird how when you act bad, good things happen to you. They had for the girl who has insulted other girls. But she was always nice to me until now, which it was only because she was a social climber. She's left her old friends, picked on heavier girls, and even called a girl a .