Your wife MIGHT THINK she doesn't want sex while that not necessary is true. I have been struggling with the venous leak for many years. So if I manage to get a descent erection, it will either fade before I can finish, or I finish while my wife still on the arousal mode. Either way very seldom she was getting an orgasm. So over time her desire for the contact was reducing so that at some point time she would never express any interest and would agree for an intercourse only for my satisfaction.
But that has changed since I've started using constriction rings. Now I can maintain a descent erection while the reduced sensation makes her finish way before myself. As as a result, now at least once every couple of weeks when I going out of our bedroom I am getting the question - where you think you're going?

So I guess the mother nature awoke her desire again.