Bucky, yep, that's the way I see it. What goes around, comes around. Karma. I may have suffered, but he has to have suffered too, in some way.
I got to thinking about your story, and your phrase "she won't grant him" . . . So I just looked it up on Wikipedia . . . Since 1985 all (US) states have enacted a no-fault divorce provision: "Either party may request, and receive, the dissolution of the marriage, despite the objections of the other party." A divorce is either contested or uncontested. That is, the couple is in agreement on the terms of the split, or they aren't. So, if that's exactly what your ex said, that his wife won't "grant" him a divorce, he's still lying. Maybe he isn't divorcing for another reason? Maybe financial or for the sake of appearances? Either way, you're right, he's in a mess of his own making and you're well out of it . . . .