BBA + Heartbreak - reading your posts reminded of something I had entirely forgotten! My h said what he was doing was fine, because I had once broken off with a boy friend.
This was when I was 20 years old!!! We weren't even engaged. The logic was that it is OK to end relationships. He absolutely couldn't see that there was ANY difference between me finishing with a boyfriend, and him leaving me after more than 30 years of marriage!! You couldn't make this up!!