The thing about spew I have noticed is that it was much worse in the beginning and I get it now when things are not going well in my H's life. When he is happy as a clam, I hear nothing. When things aren't going his way, he messes with something to get me to contact him so he can get some supply from a big messy fight. I do now, as you did, and do nothing. I certainly hope this angers him, but at least it stops the spew.
I don't know how you guys cope. The wives seem to hang around for the most part and want to be in your face with the kids. The husbands typically just disappear so we get to do what we want with the kids.