She sounds like a niece of mine. One of my nieces claims to be a true believer in the JW religion, but has never practiced it. Clearly the reason why is that she wants to make her own choices and live her own life. She has married well and has a career as a registered nurse. She shows no signs of becoming a JW.
Don't worry about what your friend says. Look at what she does. She sounds like a poor prospect to become a JW. Maybe you guys can talk about other things than JW "theology" when you're together. Without too much talking, simply show her that your life has improved since leaving the JW's.