The reason why I'm curious how he was with OW is that I'm trying to determine if SO is NPD or what.
If he was emotionally available for her though, it might just be because he felt safe enough since both he and she were not actually available (married etc.)
I read that NPD's can't say thankyou or apologize.
Also I read that it would befuddle them if you asked them, what do you think I think of you.
Well, what if you didn't answer the phone when he called in the middle of the day -it's not like you exchange anything necessary. And what if at night you go out...