Ok completely new news to me, apparently her mother has turned right around and is now very supportive. I'm a little out of the loop because because this is being kept quiet, need to know basis. I only mentioned it here because I was so emotional and needed to get it off my chest, I'd appreciate it if everyone promised not mention any of this outside of this thread.
The girl is in the hospital getting the help she needs, my only problem is my sister. She knows I'm here (with open ears and a debit card at the ready for emergency chocolate purchases) As far as I know (what I've been told) there was only one time when the girl threatened to kill herself and took a bunch of Tylenol. I have another friend who had anxiety issues and attempted suicide a few years ago, one of her friends made a huge list of reasons she should live, I think I'll suggest my sister do that for her friend, just in case. She could frame it and put it in her room and if she ever gets really bad my sister could text her one reason a day.
Thanks you everyone for your help and support, it means a lot.
Equestrianism; 10% luck, 20% skill, 15% concentrated power of will, 5% pleasure, 50% pain and 100% reason to remember you're absolutely insane to be riding a beast that big.