I don't want to speak for TL, but in my view, the very fact that she agreed to the schedule and that she is trying, and sticking to it... geeze. That sounds like 'desire' to me. May not be 'over-the-top, I have to have it, now!!!!' desire...
I'm curious. Are you looking for your W to desire being with you, or being with your penis? Seriously. These are two different types of desires, and I am STILL perplexed as to what you are after. If I get that in my head, maybe I could make more helpful suggestions to you.
