Dear Marlboro Chick, You are a human being and no human being deserves what you have been going through. Do you have somebody at school who you can talk to like a counselor or a favorite teacher who can help? It is hard now to realize but this is not your fault. Please try to get some professional help. Your friend did the right thing. Do not punish her.
Please let us know how you are doing. There are a whole bunch of nice people here to listen to you.

Peace,
Nobody