Exactly Barb! Many times I had to say that I was not going to argue about certain matters, say good-bye, then hang up. Then he would call and leave messages yelling at me for hanging up. I would respond with e-mail that whenever the conversation because accusatory, blaming, derogatory, etc, I would not engage in it and would end the call. It has died down over time. I really think he loved the drama and loved being able to say crappy things about/to me. Sadly he now does it in front of the kids with the new Mrs. X (formerly OW.) I have a feeling that FLTC's X indulges in the same destructive behavior. Sadly all they do by doing that is drive a further wedge between themselves and their children.
"You can't stop the waves, but you can learn to surf." Jon Kabat-Zinn