What would you do?

Let’s say your boyfriend proposes to you when your a few months pregnant. He’s off telling people he thought it was the right thing to do since we’re having a baby. Now fast forward the baby is 8 months old and the guy is saying he don’t want to be married because his parents marriages didn’t work ect ect. So now we’re back to dating? How do you go backwards? The weirdest part of all, he thinks it’s ok and we’re supposed to go forward in life all happy. How?

Thoughts and opinions wanted.