You have the ability to give her what she wants if it's in your heart to dominate her and possibly become her master. She seems for need for you to feel that BDSM is right for you too, not just about satisfying her. We subs have this need to be controlled (or atleast I do) and we live to serve.

In my opinion, she needs you to confirm that you want to dominate her not just to please her... but to bring pleasure to yourself as well.