Dude, sorry to tell you, but you can't save this chick. Trust me, I have been there. You want to help and you think you can help her, but most likely you can't. Even if you get her to love you and leave the JWs with you, there will still be problems. Oh, sure, you two might be happy for a few months because you'll be living off of the high that comes with new love and infatuation, pluse the unexplored new-found freedom that comes from leaving the JWs. But, after a few months, she'll settle back into her emotional rut, except now she'll have new ammunition to reaffirm her emotions. You will be the whipping boy for all of her problems. She will be soooo unhappy because YOU made her leave the organization and if it weren't for YOU, she'd be happy... and so on and so forth. You will become her emotional crutch. Trust me dude, you may really love her and care for her, but I'm willing to bet that nothing good can come of it for you or her.
I know it sucks to hear that, but you're doing the best thing you can right now. Leave the organization and get your head on straight. Learn to live a normal life and then try and find out where a woman fits into that equation for you. That's all the advice that I guy who has been there can give. :)