I've dealt with a girl like this before. If you read my background thread, I forgot what's it's called..but anyways... My ex tried committing suicide. Just watch her and wait for her to fall asleep. Make sure she gets a LONG sleep and wakes up from natual waking-up, not loud noises, etc. When she wakes up, tell her how you feel and tell her how she needs to take medicine to help her. If she refuses, get a physciatrist to come over. Explain to her how you love her and if she would die you wouldnt know what to do and explain how she is everything in the world to you. You sound like you really love this girl. I was in the same situation and I really loved that girl as well, but the relationship ended up dead in the future anyhow --- anyways...just do that and let me know what happened ^