You asked, "What would you do?" I would stop carrying the guilt that I unplugged her from the Matrix. I would not take "blame" for her losing her faith. Anything I do to help my wife to think for herself is a positive thing. I won't deny that people go through depression, but it is not from discovering the truth about the truth- it's from being deceived about the truth.
I would tell my wife that depression requires counseling. If she wanted to start at the medical doctor, fine and dandy. But I would ask that I could go along and explain what I know to the doctor. I would tell the doc that wifey is depressed, in my opinion, because she was duped by the Jehovah's Witnesses and doesn't know what to believe anymore. All I could promise if she disagreed about the JW's duping her, is that I would refrain from directly criticizing the JW's.
Further, if she didn't want to go to a counselor, I would consider going without her, depending on how depressed or screwed up I was. I would at least consider going to a marriage counselor without her (if she won't go) before I consider giving in to her unreasonable request to return to the dangerous mind-control cult.
If she had to go, I would tell her that I won't go in. If she says she wants friends back, I would tell her they must not be real friends if they need both of us to go to the hall for them to socialize with us. I would offer to start friendships with ex-JW couples or other tennis players or other museum goers or other people that have something in common with us. I would offer to join book-of-the-month club or take up ballroom dance or do something she is interested in. If necessary, we could volunteer somewhere to do something good and to meet people.
That's what I would do.
The first rule of mental health medicine is NEVER buy into a patients problems, from delusion to grandiose thinking to hallucination whatever.
I like that. It sounds like what I said in the last thread. As for you and what you are going to do, I recommend that you don't go to the hall. If you do go against advice, I recommend that you do admit you are only going to keep her company and you know it's all crap.