He's looking down at what he's doing but he does grin at her comment, looking sideways at her when she continues. 'I'll just have to learn to cope with it. What a difficult task ahead of me.' He punctuates this with a pat to her leg. Also because he's moving to the other one, reaching over the one closest to him to start in on the muscles in that calf.

That's probably a far more accurate reasoning, but not one he'd ever admit to, obviously.