He’s going to get over you in his own time and the best thing you can do is to stop engaging in any negative or destructive behavior he invites. And if you can’t do that, then start with big boundaries, and as time goes on, you may be able to reduce these boundaries, but for now, you need to disengage.
You can’t — and shouldn’t — keep your child from him because you’re angry at him. You may have just written this without really meaning to do it, but it’s important enough to address. Your child needs to have as healthy as possible a relationship with both parents, so try and keep the child shielded from the craziness and establish regular and consistent visitation for the child with it’s father.
A court ordered visitation schedule is a wonderful way to help with boundaries because it comes with enforcement methods. It also limits engagement over pick ups, drop offs, who gets Christmas with the child, etc.
Try this and see if it work — and let me know how things go. I hope you’ll join me @AskAprilcom on Twitter. 😀