indireneed:
I know what you're going through, and it isn't at all easy. My wife returned to JWs after we were married. She had been out for many years, but when faced with some emotionally stressful events in her life, she returned. Our marriage has suffered since. The large amount of time necessary to attend meetings, assemblies, conventions, and proselytize takes her away from our relationship. All relationships require work and time to do the work. It's no wonder the relationships of JWs and their un-believing "worldly" mates suffer. Oftentimes as well the unbeliever feels alienated, alone, angry, frustrated, helpless, depressed, rejected, an object of religious bigotry and more. I know; I've felt all of these things.
There are a few things you should do. Arm yourself with knowledge -- knowledge of JWs, of cults or high-control groups who use mind control to manipulate and indoctrinate people, and how to effectively approach a person being influenced in such a way. I would suggest you start with Steven Hassan's book Releasing the Bondshttp://www.freedomofmind.com/. There are also some excellent resources on the site. Secondly, take care of yourself. If you fall prey to negative emotions and depression, you will not be able to make any headway with your wife and improve your relationship.
Kathy said:
He'd listen, and then he'd sometimes try the humiliation trick...
I would strongly disagree with this approach. Oftentimes those most succeptible to being indoctrinated already suffer from low self-esteem. Their self-esteem needs boosting. The last thing they need is to be humiliated and brought down even further. This could easily backfire and your wife could withdraw even further into the group. Francois' suggested book The True Believer by Eric Hoffer goes into the emotional and psychological make-up of a "true believer" in great detail.
MegaDude said to tell your wife how much you love her, but then followed up by suggesting you give her an ultimatum. The first part of this is sound advice. You need to demonstrate your love for your wife as much as possible. If your angry, frustrated, and/or depressed, this may be difficult. But it is necessary. As many have already pointed out, your wife is looking for an emotional boost. If you can provide this (compliment her on her appearance, her cooking, etc,, tell her you love her, and so forth), the JWs won't have such a stronghold on her. The ultimatum about leaving may backfire, firstly, if you're not serious about it, and secondly, it will hinder any inroads you may make towards extracting your wife from the group and play right into their hands.
You also need to help you wife to think for herself, and expose her to information in a non-threatening way. Hassan's bood deals with this. There is also an excellent article on the freeminds site about how a former JW elder extracted his family http://www.freeminds.org/psych/exithelp.htm. He posts here often.
More than anything, you're going to need patience. This is a long process. You've got to be in it for the long run.
I wish you the best of luck,
CPiolo