I think she must be enouraging him somewhat. Often we want to keep people around but aren't ready or will never be ready to give what they want. So he continues to try to sell it, with her leaving just enough cheese, perhaps because she hasn't really decided "No," just she wants to go much slower. And sometimes people who say no change their minds. Men actually believe that women often do so, and as a result, wait to shoot their shot. Standard mating dance.