I often think this of HD's wife...that she "initiates" by being vague and antagonistic. She is too shy/awkward/proud to admit that she wants sex from him, so she tries to antagonize him into saying HE wants it and then she can "give in". I know this is a typical HDW view...but I can say that my own sister does this so it is possible right!
I mean, she wasn't always uninterested in sex was she Hairy? How did she used to initiate back in the day?