From experience, though not all are the same, I was very similar to you husband in action. I hated going to meetings but thought it was still the truth, that’s where the double life comes in. He may resent the bad light, he perceives, you put him in within his congregation. I was an elder at the time and when your wife leaves the witness’s only one can survive: loyalty to the witness organization or the marriage, both together in the long run are nearly impossible. Both were lost in my case and I don’t miss either now, however it was not always that easy.
If you want to save the marriage tell him you need time with him and do not accept no for an answer. Use any subtle persuasive means you can to keep him away from the meetings (yes you will be playing Satan) he has to stop hearing the mind control reinforcement to see the lies there.
It can workout.
HCM