Relatives of mine have managed to stay happy in their marriage, while the man has faded. The elders came to their house one day, and the man was well prepared. He gave them a list with questions to answer and his promise that he would return to the kingdom hall if they could give him satisfying answers. That was over ten years ago, they never came back and he has never returned to the hall. He and his wife never talk about religion, he became a 'born again christian' but he kept a low profile, never celebrated holidays or birthdays. His wife is still a very dedicated JW. Their only child is allowed to make their own choices, although the woman of course tries to influence that, but the man is showing the other side of everything, so there's some sort of balance there.
Bottomline is: it is possible to successfully fade and keep your marriage intact, but only if you're willing to give in on things like holidays. Total freedom of speech and doing what you want is not in that package... So it's the question for you, atacrossroads, if your husband and marriage are worth that price!
Wishing you all the best, and welcome here!
Bruja x