I'm going to confront my manipulative friend
Why are you going to confront her?
She needs to stop acting this way, it is not nice the way she is treating others.
Trying to defend others is admirable. It is good you want to talk to your friend to try to curb her bad behavior.
I didn't want to do it at first, but now I have no choice.
Confronting friends is no easy task. You are doing a good deed for everyone that has been manipulated by your friend by speaking to her about her actions.