I'm sorry! I think I know how you are feeling, I've been there before, and I don't think there's anything I could possibily say to make it any better.

However, throwing your computer away is bad idea. There was a wise woman who once told me when I was rambling on about 'virtual suicide', "Real life friends can hurt you too." And of course you were right. Just try to ignore and forget the ones who hurt you, no matter if in RL or online, and hold on to the rest. I know, it's far easier said than done, though ... *sighs and hugs you again*