Your wife obviously has more complex issues than a simple "I would do this" answer can solve; however, allow me to say that a great part of your wife's psychological conflict is symptomatic of what happens to a person when they either pull away from a cult or are forcibly removed from one either physically or via coercion (your method).
Mind-control is a very strong and powerful tool of manipulation, and the Watchtower Society is skilled and well-versed at applying those techniques to control its members. I don't suggest going back because it is only going to make your marriage even more of a "hell" than what it was before.
I was a member of that cult, and when I found out the TRUTH about that group (through prayer) I was beyond shocked. There are no words in the human language to describe my reaction... . But I can tell you that every major war this planet has suffered; every "new and emergent" disease; every questionable incident of starvation and drought, "global warming", presidential assasination--the Watchtower either had a direct role or indirect roll. I'll start by providing you with some keywords to do a search:
Zionism-New World Order
Agenda 2000 Global Depopulation Agenda
The Georgia Guidestones
Charles Taze Russell and Angels and Women
Charles Taze Russells and the Freemasons
These are some key terms to start you in your research. I can tell you that the Watchtower Bible and Tract Society was started to allow Communism to get a firm hold in this country without suspicion (because it was registered as a religious and non-profit organization). This is, in fact, the REAL reason the earlier leaders found themselves in the Atlanta Penitentiary--on suspicion of attempting to subvert the United States Government and establish Communism, and using religion as a cover.
If you don't know about the Rothschilds, research them and their connection with Russell. Charles Taze Russell was an associate of the Rothschild patriarch, and Russell was sent to Palestine by Rothschild--before the Balfour Declaration was signed--and Russell communicated with Rothschild via written letter the state of Palestine as well as Russell's recommendations for settlement of the "Jews" back to Palestine. Russell was also involved in the occult and communicate with demons on a regular basis..
In 1913, the American government was essentially hijacked by a gang of Jewish bankers who set-up what we know as the Federal Reserve System to print and maintain our nation's money-supply. Mayer Rothschild is quoted as saying: "Give me control of a nation's money supply, and I care not who makes its laws!" But why is this significant? Because all of the original teachings of Russell; Rutherford; and Knorr were JEWISH beliefs and Mayer Rothschild was an elite member and controller of the Zionist Organization--a Jewish and anti-Christ organization! This is why every single "prophecy" that Russell and or Rutherford declared FAILED to come true. This is also why the basic teaching of the JWs has always been the downfall and destruction of Christianity! If you have not read the Jewish "holy" book--the Babylonian Talmud, you should know that the book contains tractates that refer to Jesus as a bastard, and refers to his mother, Mary, as a "hairdresser who slept with carpenters". To this very day, the Jews not only hate Christ but despise the faith Jesus established on earth--Christianity. In their Babylonian Talmud (this is the real title of the book) it is also written that Christ is in "hell" burning in boiling semen and excrement... And there is one more document you should read:
The Protocols of the Learned Elders of Zion: this document is over 200 years old--at least--and shows the plan for world domination by atheist Zionist Jews--and their plan is pretty much complete. Look up the Georgia Guidestones and you will see the "new" ten commandments for mankind. The first one declares that the world's population MUST be reduced to and maintained at 500,000,000--that's a more than 95% culling of the human population--and these Zionists are in the process of killing us as I write this. This is why the bible -writer was inspired to write that there WILL be a great crowd who survives a terrible catyclysm--but that NO human could number the survivors; Christ KNEW that these people would do this but he made it clear that world rulership did not belong to them--even though they do believe this. There is tons of information about what's going on out there--if you want more info, let me know. And please, don't take this info as a diatribe against Jews because it isn't. If you visit http://www.jewsagainstzionism.com, you will see and read about orthodox Jews who are trying to warn people of the same thing.
http://www.biblebelievers.org.au/przion1.htm-- The Protocols of the Learned Elders of Zion
There are plenty more links with book-loads worth of info if you want to know more about this and what they're planning next.
The JWs are being initiated into the Luciferian Order. Their teachings have been gradually changing--without the JWs noticing--and to give one example: the JWs are now told (I saw it in the January or February 2008 Watchtower) that Charles Taze Russell and Rutherford are now running the organization from heaven. Well, a thinker will remember that Jesus said that communicating with dead is forbidden and that the only helper he would request his Father send to christians would be the Holy Spirit. In their 2008 Awake! magazines, they also focused on the obelisk and egyptian pyramids, as well as noted men who were Zionists and scientists! But the Witnesses aren't going to dig below the surface of what's in front of them because they have been trained to do what they're told. You won't like what they have in store for you if you return there--not unless you just WANT to worship Satan.. in the New World Order
Let me know if you want more info...