I've tried. Trust me I have. She wanted to hear no parts of anything related to God coming from me. I guess she's happy.
MTS, She probably doesn't want to hear anything related to God coming from you because it conflicts with everything she's doing and wants to do right now. I think your W has decided she can put God in a box he'll just stay there. I honestly don't like her chances of that working well for her long term. I'm sure her perceived feelings of happiness are temporary.
Meanwhile, keep turning to God and use this time to continue to work on yourself. Keep GAL'ing.