Haven't spoken to my best friend in a month, what to do!?

ahaha, sound sad:L but yeaaa, well i haven't spoken to my bestfriend since before easter, unless were arguing, i think i'm in the alright side, but here it goes, well, my bestfriend wrote really horrible stuff around facebook about my mate, and then my dad 's mate went round my bestfriends house saying what's this about? and now my bestfriend is like to my mate i can't forgive you when she hasn't done anything her what so ever, and my mate is like i will try with her, and my bestfriend is like i can't explain what she has done but she has done something, so we were all meant to go out for a meal, and the night before my bestfriend rung me up saying we can't go cause she hates my mate, and i was trying to be nice, saying but she's trying please try, and stuff, at school i sat next to other people, and made plans to go out with them, she like started crying saying i'm doing this just to piss her off, i had enough, and said if your not gonna try then i cba with this anymore, we didn't talk, and then i wasn't allowed to go on holiday with her, cause i got excluded from school, and got in trouble with the police, and didn't come home, so i guess that's far, she had a go at me, saying was was screwing my life over, how my parents don't care about me, and said how can my friends stand me, even though she nicks things from shops, she's just as bad but even worse, it's just cause she hasn't been caught yet, and stuff, but now i hate how we don't talk to eachother, i want to talk to her, but she's blocked me from facebook, what should i do please help, am i in the wrong, thankyou:Dx