I'm sorry you are in this situation. I think you answered your own question. He is not your friend if he is unpleasant (read pompous ***) to be around or if he gives you misgivings or makes you feel bad. Please don't be embarrassed or feel worthless. You were trying to be a good friend and you learned a valuable lesson. Maybe you could limit your exposure to this guy. Judge or not he sounds like a real jerk.