What do Shimamura and Komako do the night before he is to leave for Tokyo?

On the night before Shimamura is to leave for Tokyo, Komako insists that they take a walk together even though it is very cold outside. When they return to the inn, Shimamura suggests they bathe, but Komako sits on the floor and changes her mind back and forth saying at first that she will go home, then that she will stay, then again that she will go.