My W is now extremely polite. Never used to say "thank you" - now everything (the very few that I get) has that.
On the other hand it is so very tough for me to call her by name and not use any of pet names or even just "dear" or "my sweet" that I used to address her by. I took such an effort after BD2 to stop using those although I did use the occasional "dear". I think for all the years prior to BD I only called her by her name an handful of times - usually in a formal environment.
Perhaps different rules apply in Fairy Land? They certainly apply on this side of the pixie dust curtain at least to me.
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells