Instead of asking her what it takes to make her happy, begin to act happy yourself. Make some improvements in yourself. Are you still the man she fell in love with?
I don't like the kind of man who is constantly smothering me with questions. It was always a turn-off. Maybe she feels the same way.
As is if you are going to be just fine whether she is or not. Continue to back of and give her slack.
Find things to do and causally invite her to join,but not in a "needy" way. If she doesn't then you act fine. Say, okay....see ya.
Become more interesting and excited. Those things just might help jump-start her.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!