I just read little imp's response and I concur, break up while you can.
I met my JW wife 8 years ago and when she and I started getting to the point to where it was obvious there was something going on, her family tried to convince her to let me go. I thought that my being a good person would win them over and to be clear to a certain extent they respect me. However, I would never fully be considered one of them because I am not a witness nor will I ever be.
For years I went to the meetings and like little imp, I've been to various churches and I did not see much difference between them and the witnesses. However, I was never interested in becoming one myself and I thought they would respect me as a Christian and still consider me a believer. They don't. To them, the only believers are Jehovah's Witnesses. I am an unbeliever to them, a worldly, etc..
Right now, things are okay between my wife and I. Quite enjoyable sometimes but there are times when I wish I had more. For better or for worse, we're sticking together and to be sure things are going pretty well for now. But if I had it to do over, I'd think twice about it. I don't think I would've gotten as involved with her if I knew then what I know now in regards to the religion and how it affects people. Having someone say, "I'm going to die, God's going to kill me," all because she decided to put up a Christmas tree is beyond ridiculous in my opinion. Witnesses are not permitted to have a balanced outlook on life.
For your kids sake, flee.