I guess I don't get what you need to "make right" with him? He was cheating on you! Just forget about him, move on with your new relationship. He obviously isnt trustworthy, why would you even want to be "homies" with him. It doesnt even make sense to me unless you are just wanting drama in your life. Move on. I doubt your new gf is really excited about you being "homies' with your ex. You are creating problems for yourself in my opinion. Enjoy your new relationship and let the past be the past.