Hairy,
Here is my "Oh-whatever-honeypot" theory:

I think she's horny but has NO way to express it since she has already made her disdain for sex known, far and wide. Well, maybe not horny per se, but the thought is not sounding bad to her so she is bringing it up in a negative way, trying to get Hairdoggie to show some interest in her so she can "reluctantly" give in.

Orrrrr, she is beginning to worry that he does not desire her anymore since he is giving up on pushing the issue.

Ok, HD, I'm ready for your "oh whatEVER Honeypot" reply now.