Cliff notes background: She had an affair, divorced since last year. 50/50 custody of two kids under 6. I have zero feelings for her now, she was horrible and although I was devastated at first in hindsight the divorce was basically my release from prison.

What I need guidance on is meeting the new guy. I’m aware of the relationship since my son has told me about this guy. He’s not the affair guy, that guy didn’t stick around so I have no issues with new guy as long as he treats my kids well.

This will be a birthday party for my son, he’s attending and bringing his two kids since I saw it on the evite. For anyone with experience, how have you handled this? Obviously I don’t want anything to be weird and want my son to have a great party. The attendees will all be her family, me and his friends from school.