I told all of my exes that I love them last night
Why would you say the same thing to all of them?
One of my exes is getting married soon. He doesn't love her, but she has convinced him that he does. I'm worried that he'll do something stupid to himself or others
It's not right to tell your exes you love them if they don't feel that back. You should be more respectful and stay out of their lives.
I can't let him kill himself just because he's in love. He doesn't deserve it.
I didn't say that you should just tell him to kill himself. I just said that it is bad to tell your exes that you love them if that is not how you really feel.