Disclaimer: I'm a busybody who doesnt know when to shut up...
You are tied to this man for the next 15.5 years at the very minimum because of your child. You need to figure out a way to work together, both you and him. It's not in the child's best interest if mommy and daddy can't get along. the kid just gets put in the middle and well ... that's not fair to the child.
you're not married anymore... but you are still a family... for the sake of the child, can you consider family counselling to figure out some sort of middle ground for you to work from.