How do I get her to leave?

Further to my original post Am I jealous?

This girl will not leave my circle of friends.

She is good friends with my former best friend so she is always hanging around. I've told him I can't stand her being around but he refuses to do anything about it because he has a pathetic crush on her. she is one of those teasing types and loves the attention. If I believed they were true friends I would put up with it.

I just can't stand being around her.

She knows she's caused all this trouble between me and my friend and refuses to leave.

What can i do to get her out of my life?

The only answer is to distance yourself form the entire situation.

You cannot control them, you can only control yourself.