My friend is very angry at me.. what do i do ?

me and a very good friend got caught doing sumthing we shuld have been, so i left her at the scence of the crime and i went 2 her house 2 get my stuf bcuz i was living with her at the time. wen i got there she was home and said she hated me and i am a shitty person ect, all because i left her there. well then she started running hr mouth to y boyfriend and me and hm broke up, every 1 had dirty secrets in a relationship lol i and somehtings are just bttr lft unsaid.. and now shes bad mouthing me 2 every 1. WTF i tryed tlking 2 her but she ignores me. her rents hate me now. she bloked me on facebook. she dont have her phone anymore. she glares at me. shes very angry! idk wat to do! i was thinkig goign 2 the skool counciler and having her come down and tlk. i dont like having conflict with ppl. i nvr thought she wuld act like this