Since your W is motivated and feels like it is a physical problem, here is an odd technique I read about that might work.
Your wife should lie flat on a bed and relax. Then she should start kicking her legs up and down so the flat of the back of her leg hits the bed. She should do it quicker and quicker and relax her shoulders so that her head bounces freely.She should breath freely and deeply as she does this. Theoretically, this will increase oxygen/blood flow to the pelvic area and create a mild buzz of desire.
"Tell me, what is it you plan to do with your one wild and precious life?" - Mary Oliver
