Her heart and your time and treasure
Do you support what she enjoys? Do you devote money to the hobby, collection or activity that brings her happiness? Do you consider the timing of things she would like to do when you make plans? Do you offer to watch the kids so she can attend a show or conference that pertains to her interests?
It’s great to say you support her, and her interests, but your actions rather than your words will tell her if you really do.