He'd be touched if he knew. Well... maybe, anyway. Mostly he'd find it equal parts hilarious and pitiful, but there was room in there for a bit of 'awwww'-ing, too.

"Do we? Oh, what a shame. Still, everything has its price-- I suppose I can bring myself to make such a sacrifice. You know, if I really brace myself."

It was very, very obvious that he was more than willing to kiss her. He didn't even need the excuse of a deal. Consider it a bonus.