I know some may not get this. However, you don't babysit your own child. It's your job. And if a parent actually refers to it that way, that's a bigger issue.
Be pleasant. However, your h is trying to lull you into "isn't this great?" Don't take the bait. Focus on you and your child.
This ^^^
WAS standard operating behavior. Do not trust him with any financial decisions. At all. They like to feather their nests while they can before dropping the final bomb. I'm glad you have a separation in the works. Finish that up, pronto. Protect yourself and child first.