perhaps the best option left for you... is to simply let go for now, and be the best you that you can be. If he decides at some point in the future to "check in" on you, then you will be in a better place personally, to talk with him. Try to do some things that are positively meaningful to you right now. treat yourself, and feel a bit better about yourself.
I'm very sorry that he did not contact you for your birthday. To me, this says that the best thing you can do, is look after you right now.
As a side comment, he's a schmuck for not even acknowleging that you took care of HIS bills. especially on your birthday.
He is in total aggression/defense mode against you right now. nothing you say will have any effect on him right now, most likely.
So.. take care of yourself, "regroup", and see what you want to do in another week or so perhaps.
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle