I don't know if my example could be any help to you or any one else in making a decision but I don't think you should live a lie.
My husband after being quite depressed for a while and stand offish with me told me that he didn't want to go to the meetings any more and there would be no discussion about it. I could carry on if I wanted he didn't mind. I was shocked but relieved because I was afraid that something more serious was up. He used to help me get the children ready for the meeting and take us there.
Then one day, I was sitting in a sunday meeting, bored to tears and I just thought, What the bloody hell am I doing here listening to this crap. I realised that I didn't want to be there either and had never wanted to be there. That was the last meeting I ever went to, almost.
There followed a Tuesday group meeting, and my head and body knew I didn't want to be there as I could not stay in the group. I had to keep going out I was shaking so badly and felt so ill and nervous.
It's taken me years of counselling and therapy to break free from an organization that I always hated and that would never had happened if my husband had not made his stand. You can't always tell what your brainwashed marriage mate will do and how they will react, but if you treat them with love and kindness you may be surprised at the result.
Now we're both free and finally REALLY happy!
Good Luck!