No, to him you will just be calling him/her names. It doesn't mean anything to him/her. Just leave and have a good life. Have no contact with him/her any more... at all... not even a little otherwise he/she will suck you back in.
If you feel the need for closure you can confront him about his behavior towards you, etc. But know this, it is for your own peace of mind. It wont do him a damn bit of good but it might help you to validate yourself. Tell him off and get out of the way.