This is a tough one for me to comment about. I think I'm feeling a little awkward about it because I believe you are young, and this is such mature subject matter. If I'm wrong about your age, I apologize for misreading.

I think my first instinct would be to tell your friend to do whatever SHE is comfortable with....not be too concerned about what others might think. If she wants to stop these behaviors and can't, a therapist would be a good way to help her. Does she have a way to see a therapist?

Take care of her, you're being a good friend.

Missi