There are times when having little communication is a good thing. Wanting to be effective co-parents works only if that's what both parents want. If one of you doesn't want to put in the effort, it's not going to work.A very effective way to deal with folks who can't communicate appropriately is something we call Radio Silence. When it's an ex/stbx, there's no communication at all, except about the kids - pick-up and drop-off, or if there's an emergency. Even then, it's just the facts. No small talk, no How's it going? even if you're the kind of person who does that when you call, e mail or text for business. You respond only to things that have to do with the kids - Yes, I'll have the kids there at 2pm, or I got your message.As far as his anger toward you, you stopped him from having his cake and eating it, too. He's probably not at all happy about whatever your settlement is, including child support. If he was like my ex, he considered his retirement funds his money, and was not happy at all about the amount that he had to transfer into my retirement accounts. He most likely believes that he's done nothing at all wrong - except get caught.We're here for you.