I am worried that will backfire somehow and he'll accuse me of not allowing him to see her or something equally ridiculous. He can get nasty when he doesn't get what he wants.
I think you should be prepared for and look forward to something like that - it would be a perfect opportunity to practice your new skill of owning YOUR sh** and letting him own his. You are definitely not obligated to constantly hang out with a WAH anytime he feels like it. Think of it down the road...let's say 4 years from now, you're remarried. Would WAH be allowed to invite himself into everyone one of your family plans? Of course not! So why should he have that right now, just because you're not in a committed R? If he was committed to your M, it would be a different story, but he chose to leave, he's choosing to stay away, so he is choosing to potentially miss out on lots of moments with his D7. That's the reality of HIS decision.
Me 38, WAW 30 D11 (former marriage) S2 T 8 years M 3 years BD 8/20/23 S 8/20/23