Originally posted by Nightingale

I had a friend like this and I got her to see a therapist and just supported her through everything. I was there every single night until early in the morning comforting her and she's a lot better now. It was definitely a lot of work so you're going to need a lot of patience.

I also had another friend like this but he was so bad and abusive that I just left. Especially since he was never going to get help or even admit there was a problem.