I am going to add my support to Littleg here. I think her OP was very interesting and thought provoking. It was not her asking whats in it for her, it was her partner asking her that question. Littleg like most GGs on here are rare and their input often very valuable.
M's question of you sent a very big positive message to you showing that it is not all about her and her dressing and her needs. We only have to look at some of the threads on this site to see how some girls can get very self involved.
Is not the biggest WIIFM to have a partner that can be both a husband and a best girlfriend in one?