The most important thing that is keeping my wife and I together are those always difficult but much needed totally open and honest discussions. Just talking about important stuff was yet another talent I needed to acquire. There is a downside, the often times raw, unfiltered, emotional words that may get out. That requires being able to listen past the words and for the what caused them. To not take it as really being meant to hurt, but to get a point across. Something akin to the 2x4 up the side of the head attention getter, only more painful. If you still feel the hurt later, then bring it up in a calm discussion so as not to get sidetracked while she is trying to tell you something very important to her.
I think it was the big smile that came on my face and the warm "Thank You" my therapist got as she referred to me as Joanne handing me my next appoint card was the point when we went from "It doesn't really matter to me what name or pronouns" to yeah, it really does and not just within the inner sanctorum.