There are so many of us in your situation- the mate who woke up trying/hoping for change in the other mate.
I had to let it go and just lightly hit at the doctrine now and again. Mostly, I point out things in daily life and politics where people choose to close their eyes to the clear and obvious truth of matters. Mostly, I help tug at my wife's emotions about doing the right thing and how it would be wrong to "shun" family over petty differences. Hugely, I point out problems in the news with Muslims, Mormons, Christian groups, the like- without directly mentioning JW's.