((((Milly)))))
Bull. You are not a bad friend, I consider you a friend and I think you're wonderful.
You know what cutting is all about, and is not your fault that that is what your friend is doing to cope. People can't be forced to stop, and you can try to be there for her to talk to, but that's about it. She's lucky to have a friend like you, someone who cares so much.
I'm sorry about the abuse she's suffering/suffered. Has she told anyone in a position of authority?
Don't take on too much responsibility Milly, you need to take care of yourself. Even though I know you want to help.
If I can help in any way, let me know okay?