That is when you hand the dad termination papers at the end of the day explaining about the email which he may know nothing about and say it sounds like your wife is unhappy with my care and therefore here are her termination papers to save her the trouble of having to take two days to figure out how to approach me.

My guess is you will get a phone call tonight and the conversation over with and then you can decide if you leave the termination in effect or give them another chance. At least you have taken control and not let her bully you.