Guys, help me understand. Assuming he doesn't have an actual personality disorder, what's the deal with trying to "show me" how fab he is and how great he is without me?
OK, first, you are making a conclusion as to his motivation for texting you. Again, this is still under the heading of wondering "why." If you are wrong, then he called to set up a time to talk about the kids.
Second, assuming you are correct, IMHO, it could mean he still feels some pull towards you. Again, that assumes you are correct. Even if you are correct, it doesn't mean he will come back.
Point is, put the focus where it belongs - on YOU, not on him or his motivation in doing X or Y.