Hi,
As a man "trapped" for 35 years in marriage I say let this man go and move on with your life. You are young and can start over. What you don't need is a narcissistic man masquerading as a committed man. If he was he wouldn't put up resistance to marriage. He doesn't really want kids and the kind of future you envision so, kick him to the curb and get on with living.

Good luck to you.