Co-Parenting issues

Jessica • Mommy of 3 ❤💜💙

My oldests bio is a pain in my ass. He refuses to set up a consistent schedule for seeing her, often bringing it up the same day, or 2 days in advance. This time he said he took the Sunday before her birthday off to see her, which is fine but we had prior plans, which he expects me to drop.

He now won't respond. but I don't know what to do anymore. I won't hear from him for over a week and suddenly it's, hey I have this day off and I want to see her. and if I say no suddenly I'm a horrible person. I try to leave our past out of it but it's insulting.

What can I do?