>>6 If you trust your parents enough, you should tell them even if you think they'll try getting you back together with him. Perhaps, they just thought you seemed happier with him, but from the looks of it, I think the relationship will make you sadder if you continue. Explain that to them and explain everything he does that makes you feel uncomfortable, sad, etc. They won't try to force you to be with someone who you obviously don't like anymore or don't feel good around.