Anger is not easy for any of us. I have a problem with rage. When a partner gets mad, that's usually okay. It's hard, but it's no longer scary. When…
Always treat your co-parent with respect and compassion. A metaphor for co-parenting might be, "Treat them as well as you do a convenience store clerk." You want to get in and get out with as little hassle as possible.
I believe that living with anger, creates an angry life. Showing the angry life to your kids is not the lesson you'd prefer to give them. Discharge your anger however you need to do it, but quit firing poison darts at your co-parent. You are liable to hit one of your kids instead.
Co-parenting is a cooperative relationship. When one of the partners decides to be uncooperative it changes the dynamics. However, as a positive parent, you can be the bigger partner. Choosing the positive is about every aspect of your life, and your kids are the most important relationship you can manage.