Am I unreasonable to mind my husband putting dates with his mistress on the calendar

[Adviceseeker35]

I'm separated from my husband after he left me in February. I then found out in June that he'd been having an affair since April 2025. We still live together. He's now started putting their dates on the family calendar with their initials clear for our son to see. He's claiming that I asked him to tell me when He's seeing her, and can't see that he's doing anything wrong. He thinks I'm overreacting. I feel like his rubbing his relationship in my face. They only good thing that it reminds me that I'm well shot of him.

His parents can't send you abuse if they're blocked. They're not your problem anymore.
You can fill in the divorce forms online.
Let him play the victim, laugh at him.

He’s a real prize. He’s still living with you, so that when he’s done with his affair, he can come over all contrite and “it’s always been you”, and can slide back into your marriage. Complete with all the things that make his life easy street. He needs to be gone, even if he does sleep in his car!