Lots of good advice from those that, unfortunately, have been there.
TXGirl, HVet, Naughty, and bb, you have my utmost respect and admiration for dealing with your situations, and having the courage to talk about it here.
Somehow, someway your friend ineeds to get therapy, hopefully voluntary. I had a friend who had trouble dealing with certain things in her life and ended up assaulting me and a few other of her friends. She was hospitalized by the courts when she was arrested after assaulting another friend. She ended up spending a month or two in a mental hospital and then another month in a full-time therapy situation. She is much better now, but it would have been better if she saught help much earlier.
I was the 'supportive friend' in this case, and while that is needed, it is not enough.
In an email list that I belong to, hugs are indicated with ((()))
(((((((((((((((((((((((((((((TXGirl, HVet, Naughty, and bb)))))))))))))))))))))))))
for sharing with us and
((((((((((((((((((((((((((Javierdude22, and friend)))))))))))))))))))))))))))))))))))))))))
wishing you the best.
LapDog2001