I feel like you already know what to do, captaincowboy! You are not her therapist and you can't help her at the expense of your own mental health. I'd suggesto to just keep doing what were you doing before. Just keep distancing yourself from her and her calls and avoid engaging too much with her. If she threatens to kill herself, call the police and ask them to check out on her and to make sure that she's not really hurting herself. I COMPLETELY AGREE with what divine1966 has already wisely said better than I ever could! Perhaps you can try to contact some of her family members and tell them how is she behaving if you have their numbers and if you feel like they may be able to help them. Unfortunately there's not much else you can do since you can't really do the work that SHE'S supposed to do! I'd say keep doing what you're doing, call the police or an hospital if she threatens any self-harm and try to focus on your own life and mental health! It is always hard when things like this happens, but it is important to acknowledge that her behavior towards you is toxic and unhealthu, both for you and for her! Don't let her emotionally blackmail you! You deserve better than that! WISH YOU THE BEST OF LUCK BOTH TO YOU AND TO HER! I hope things will get better soon for BOTH of you one way or another! Please don't feel guilty about what you're doing! It is NOT your fault! WISH YOU BOTH THE BEST OF LUCK IN LIFE! Sending many safe, warm hugs to BOTH OF YOU!