My 2 cents, love bomb her, before they do.
After I da'd they showered my husband with pity and help and support, "poor guy, satan got his family". He was barely active before, and now he goes full board. His mission is to get me back in, but I can't in good conscience do that. We are separated, I left. I have been trying, but no matter what he puts the jws first. He puts off visits with me to see them. He constantly preaches. Ugh! Scully is right, she doesn't have grounds, but you want her to be with you because she wants to be, not have to be. Show her you have more in common than religious beliefs. You will respect her, but you ask for the same courtesy.