Please listen to everyone here, and leave her alone. If you do, you will save yourself a ton of heartaches. I was raised in that cult, starting in 1974, when my mother became one, and I finally left it in 2001. One of the biggest problems I have seen is when someone who is not a JW becomes interested in someone JW. If you choose to go down this path and to stay with here this is what will happen.
You will eventually become one yourself, but I will promise you, you will not be happy. Eventually you will decide to leave the JWs, but by then you and her will more likely have children. This becomes a whole new ball game. Once you become a member, if you ever decide to leave it, you will be facing shunning, that is where all your loved ones who are JWs will no longer talk to you or have any dealings with you. This will include your own children, if they have decided to become JWs.
Or let’s say you do manage to get her to leave the JWs, she will be facing the shunning issue with her own loved ones. Most people are not strong enough to deal with that, and she will return back to the JWs. If you have any children with this woman, she will make things very difficult for you.
I have seen it with my own family, and others many times throughout the years and the results are almost the same. Please listen to everyone here, and RUN, it will save you a lot of problems. Otherwise, you will be like so many others who decided to get involved with a JW, only for it to bite you on the butt later on.