I felt like I wanted to cut off my ex-boyfriend when he was suicidal.
Why would you want to do that when he was in need?
He is a jerk, I can't take him anymore so I cut him off.
I think that is a heartless thing for you to do. It is rude to turn someone who's suffering away. It is a hard task to take on on your own but maybe you can get him some help before something tragic happens.
I'm not taking any shit from him anymore.
I get that he may get on your nerves sometimes, but what he's going through is very serious. I would highly recommend you direct them to seek professional help.