Yeah, you need to be prepared for something of a reality check here. I have a feeling this isn't exactly as simple as you think it is.
Talk to your lawyer in the morning. Ask him/her why s/he did that. Because it doesn't look bad for Mom - it looks like retaliation from you and I can absolutely see that being tossed.
If you have an attorney, why are you here? Your attorney knows the case.
We do not.
I agree that he needs to be talking with his attorney.
However, he has a lot of things in his favor if he doesn't do something stupid:
- Temporary custody. Temporary custody usually gives that parent an edge when it comes to a permanent custody decision
- Wife is moving 70 miles away. Courts prefer not to disrupt kids' lives by making them move
- Before the divorce, they were roughly equal caretakers. If anything, he was primary since he had the kid during the day and wife had the child's sleeping time
Whether the restraining order was justified or not isn't really relevant. The judge ordered one and temporary custody.
Now, OP needs a wakeup call as well. He's not going to get sole custody. They are almost certainly going to get joint legal. And Mom will have a significant time share of whatever physical custody is awarded. If OP goes in demanding full custody and alleging that Mom is a terrible Mom for kissing her boss, it will only weaken his case rather than strengthen it.