You need to do more than calm it with the sarcasm. It's a form of anger
There are healthy ways to express your anger. Sarcasm is not one of them. (lots of self work in this area also) The thing that is hard is we (most men) have stuffed our emotions and they need to come out. Therefor we over react to the current situation. It is very important to leave all your garbage at the door and deal with your W with compassion. This is a 180 that is critical. Imagine a hurt little girl in her that needs her daddy to listen to her. Deal with the stuffed emotions another way.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712