Hi UU,
Thank you for that introduction.
I'm afraid that I don't have any experience in that area, however we have many members who were/are married while one spouse transitioned. We have an entire forum dedicated for
Significant Others, so maybe someone there can identify with your situation.
As for pronoun preferences, from my own experience, I transitioned late in life (60+), so when I started, I really didn't care if I was misgendered. After all, I had been called "he/him" for sixty years, so I was rather used to it. I didn't have a pronoun preference, but that changed as my transition progressed. We have members here who are non-binary, and perhaps they can explain their pronoun preferences better than I can.