Wow, he is trying to tie you to him by threatening to kill himself?? That says it all. He needs medical and/or mental health help & if he is not willing to do that then that is *his* call and his decision. You don't need to cater to this type of behaviour.

He is not a child anymore and every human being has to take responsibility for their own lives. He is playing games and being very manipulative. Childishly so.

He needs a reality check.