Grrrr.... ex cut my son's hair AGAIN!!!

Seriously getting on my nerves! My son's hair was getting kind of long but not horrible. Plus getting a hair cut is something my son does with my dad. As well I wanted to try a different style besides a standard buzz. He didn't even talk to me about it!!!! Or give my son a choice in the matter! I'm staying quiet cause I really don't want to get into a fight about something little but it's still annoying. I have full custody, not him! Even if it was his mom who did it she has no right to do anything like that without talking to me first.

This is the third time he's done this and I'm sick of it. We live in a cold winter part of the country and Buzz cuts make it easier for him to get cold and sick. Why can't he fucking leave it alone??? Or at least talk to me about it? Ugh!