I've thought about it. I think it stems from me calling him the other day about an issue about our son. I hadn't spoken to him for a long, looooong time; after the children grow up, the ex really becomes a ghost

figure in your life.
When the boys were small or teens, we had a lot of communication due to bringing them up. Now that the boys are on their own - there is NOTHING to connect us.
Ghostly. I'm angry at a ghost.
Well, it IS Halloween weather.