He has family. It’s inappropriate to have exes in the will. Doesn’t he have a brother and nieces and nephews to leave money to? Or any family? It’s asinine to keep ex in the will if you have any family. What does he even have in his will? He’s broke, has no property and no savings so what’s he leaving you? His mom’s money? It doesn’t belong to his ex wife

I had an ex who faked cancer and dying so I know how it goes. He went on like this for over a year. He only stopped after I contacted his family and they were embarrassed he behaved that way. Contact his brother and tell him that his brother is suicidal. Let them intervene. If he doesn’t want you to contact anyone, he shouldn’t tell you he’s suicidal. They have rights to know that he’s suicidal even if we think it’s a lie.