How about I stop talking to a girl that says she is going to hurt herself
Why do you think she will do that?
She told me she wants to be eaten alive by a crocodile while we were on a hiking trip. She loves crocodiles and wants to die while being eaten alive.
If she is suicidal and struggling with depression, you should get her some help. You can't expect to save everyone, though. She has a lot of problems.
I will make sure she gets help.
Call the proper medical personalities so she can get that needed help. We don't want bloods in our hands knowing that we had a chance to prevent it.