Most Helpful Guy
I was pretty much in the exact same situation some years ago with a suicidal ex girlfriend.
It's a hard situation to handle. In most cases suicidal people don't really want to die. It's used as a call for help or to get attention. So like my ex I would guess that it could be the same with your ex that it's something he is using to get your attention, make you feel sorry for him and a way to basically force you to date him. He has taken you emotionally hostage.
The only solution is to not give in to such things. It will be like rewarding bad behavior . And if you give in to this he will use the same type of guilt tricks on you in the future.
Here's an example from my situation:
My ex called my crying saying that she had taken lots of sleeping pills and just called to say goodbye. My immediate response was "You have 5 seconds to tell me if that is really true or not. Otherwise I'm calling an ambulance and then your parents." She instantly told me she was lying.
Most of the time Suicidal people just want sympathy. So if you don't give them that they will stop acting like that. I probably sound cold and heartless. I'm not. You simply can't allow to be taken emotionally hostage. It's not helping them to treat them like victims.
After this incident she stopped talking about suicide and I could help her get stable again without all that intense drama.
Today she is alright :)3THIS IS NOT RELEVANT ANYMORE