You don't need to have therapy together.....He needs to work on his issues alone. My suggestion is to call a suicide hotline and explain the situation; they can help. We always need to take suicidal comments seriously. You cannot help him...he needs professional help; which of course he doesn't want to do. He is using emotional blackmail to try and hang on to you. You cannot allow that but you can get some advice from a suicide hotline; then you will know you did what you could. We cannot prevent anyone from harming themselves. Suicide is a selfish act....it leaves everyone in their wake having to live with blaming themselves, thinking there was something they could have done. There isn't...like everything in life...it is a choice.