First of all, welcome to the forum.
My aunt is a FANATICAL JW, and she married an atheist. They have been married over 20 years and are MISERABLE. They have 3 kids, and that is probably the only reason they remain together- neither is willing to give the other control over the kids. The kids are the most socially dysfunctional people I've ever seen. I'm sorry to be so negative, but if she is at all serious about her faith and you don't share that faith, you've got nothing but trouble ahead. Stick around, you'll learn a lot here. Maybe you'll be able to help her leave the JWs someday.
kj