Hi SES,
Divorce is tough. I'm sorry to hear you are having a hard day.
How is your relationship with the ex after it was concluded? I hope to have very limited contact with her... .
I suggest having a system in place. I have to spoken to my ex in 2 years on the phone since post break-up. I parallel parent and only discuss the children's needs by email communication and forgo the rest.
The first part of putting the system in place was difficult for both sides. She tested my boundaries many times and it eventually petered off. Over the last several months, I get the occasional email where she accuses me of something or criticizes me for my parenting. Silence is a source of great strength.
She understands I mean business and won't respond to hostility, emotional immaturity, accusations etc I only respond to the kids needs and more often than not, those are the types of communiques that I receive.
2 years ago it was chaos and now I have peace in my life.