Atacrossroads welcome to the forum.
I was a baptized witness for decades and faded away..... My wife is still a witness and we remain married. We had a couple years of rocky relationship while one as finding out TTATT but nothing really really bad. We have kids so staying married, if the household is peaceful and supportive, was important to both of us. She told me early on in my research and eventual fade that she wouldn't leave me. However, I know she feels frustration and disappointment that I am not active any longer.
Our communication is improving. I am working hard at not being dismissive or angry sounding when she mention the hall or witness stuff. I don't don't talk bad about the wts but the kids and I do holidays and birthdays and I have several disfellowshipped friends. She even goes out with my work friends with me sometimes and we have a nice time. Of course we did that when I was active too.
I hope there is something helpful in my story. Feel free to PM me if you want.