I want to leave him...?

Please don't be a person that is manipulated and abused, and this is emotional abuse and blackmail.

Leave him and if he kills himself it is totally his choice. It has nothing to do with you. People that kill themselves do it for many reasons over a lifetime of failures and disappointments. There is a precipitating event but if he is going to do it he will do it for some reason or another. Some make fake attempts to get attention over and over and then complete the act by accident. They take pills knowing someone is coming over or coming home just in time to rescue them. Then one day that person is late and the pills kick in. Suicide is complex but someone does not life a healthy emotional life and then because of one event off themselves.

He is bluffing. Get out, run away, and never look back.

Run away don't walk, this is a tactic he is using to hold you.

You need to leave and explain to him that you can't be manipulated to stay by him saying he's going to kill himself. Ask him why he would want to be in a relationship with someone who doesn't want to be there and if he really believes that would lead to a happy future together. If you genuinely think he might harm himself then you need to talk to someone close to him like a parent and explain what he's said and that you want them to keep an eye on him because you don't want to be responsible for him doing something silly.

Some girl threatened me if I don't date her ... when we broke up she faked a suicide and we gor back together ... I left 2 weeks ago she sent me a text saying that she will kill her self now.. she didn't do a **** .

SO JUST LEAVE HIM

Get away. He wants to kill himself? That's his problem. (And of course he's playing with your mind: don't let him).

If he keeps threatening you that he is growing to commit suicide just tell him go ahead, and walk away!!!!

some men just use that to keep you their.

If he does commit suicide just remember it was his own choice and that only cowards commit suicide.

best of luck to you

He is only manipulating you because he's losing you and he knows it. Don't give in. If you're unhappy and you really want to leave him, then walk away and cut off all contact with him until he gets the hint. If you linger around him then he's going to make you even more unhappy.