What can I do if my ex starts threatening me he'll hurt himself if we don't get back together but I don't want to get back with them?

If you don't want to get back with him - then there's your answer. Don't. Never let anyone threaten you into a relationship.

Your ex is responsible for his or her own deeds and so, you can't be responsible if he or she hurts himself or herself. Distract yourself from these thoughts and don't let this emotional blackmail damage or even destroy your life.

I have experienced this and I think that if they are serious about this there is more too it then just your breakup so you need talk to someone in there life about it and try to ease the situation

Listeners are taught to always refer a suicidal person to a crisis hotline and politely end the conversation. I think this same advice can be given in the situation of a person talking to their suicidal ex-partner too.

You should contact the domestic abuse number for your country. Other things you could do are ask your family if you could stay with them for a while until it all dies down

Do not entertain him. He wants you to believe that. If he had a history of hurting himself, you may want to talk to one of his family members about what is going on so that they can address the situation.

You can talk to his close friends, so that they can keep an eye on him, in case he attempts to do anything drastic. Secondly, you should have a very honest and open conversation with him, talking about how you have your own life to live, and how he can't force you to be together with him, since relationships should be built on a foundation of love, and not fear. Thus, even if the two of you got together, it would only hurt both of you in the long run, which shouldn't be okay, if he cares both for himself, and you. Lastly. Tell your ex, that you're concerned for him, and that you don't want him to react thus way. However, there's only so much you can do, and set a boundary with him, in order for him to clearly understand that even if he does take any drastic actions, they won't move you from your stance. Thus, potentially dissuading him from trying to hurt himself.

repoert it to the police, you can't be forced to get back with someone you don't love. the most sensible thing will be to report it to the police before it gets out of hand and he hurts you or himself again

File a police report about these threatening. He is trying to emotionally blackmail you by these threats. You should not have any contact with him. Block him from every social network and from you phone too. He have no right to harass you like this. Keep yourself safe from him. Share it with any good freind of yours. You are moving on in life from past relation so that he should move on too. And this is not way to get back in relationship again. It should be by mutual decision and understanding not by forceful act of threatening. Take care.

There's a lot of reasons why someone would do that. One of them is because they feel the need to control you for fear of abandonment. If that's the case then I'm writing my answer based on that. In my experience, I would tell them that I care about them, show some empathy, and set boundaries between me and the person and communicate assertively, not aggressively or passively. I would kindly tell the person why we don't click together or why the relationship didn't work for both of us, and it's not entirely their fault or mine. For example, "I care about you and I understand you're scared or upset of me leaving you, but I am not abandoning you. Relationships are based on love and respect, and I don't feel like it would work for both of us. It's not anyone's fault." I know it's hard, but, ultimately, the choice of life and death is in that person's hands themselves. There's only so much that we could do. If this keeps on going, it would be a really unhealthy pattern for both of you. Encourage them to get help from a professional if it goes out of hand and send crisis hotlines in case they need it in the future.