Irish, I think it's time to step back now and allow him the opportunity to think about this conversation. You've provided him with plenty to think about. You've stated your views and he knows how you feel.
You are the only one that can determine as to whether you are standing or not. From your conversation, I would venture to say that you are not buying into his irrational behavior, but I wouldn't have any more conversations w/him about it.
Give this man plenty of time and space. The more he has, the more he'll choke on it and come to realize that he needs to work on himself. It's not easy and you cannot convince him that you are the one he wants to be with or where he should be at this time. Just remember, the more you try to convince him, the more he is apt to run in the opposite direction.
Enjoy your time alone today. Sometimes we need it to just clear our heads.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.