There you go again, wallowing in your past naivete and misconceptions.
What are you doing NOW to achieve your goal, to become the sort of man who would attract this kind of sexually confident woman? (I'm assuming you're not talking about your W, so I'm not quite sure why she would be looking for a long-time married man with limited sexual experience....) Nonetheless, how do you plan to break down your goal into manageable pieces, so you can begin to work toward it? What changes will you need to make?