Xploration,
Sometimes love isn't enough. Her religion results in a completely different culture. Learn about her religion, and the consequences that she can experience for breaking the rules. If she truly believes in the JW religion, then what she wants for her future may be different than what you want. You both need to talk openly and realistically about what each of you wants out of life, and how the ideas will mesh together.
My daughter just broke up with her JW boyfriend last week. We have dealt with this mixed relationship stuff for 2 years. E mail me if you want.