In Chapter 13, Kit says that she "had long ago decided what her answer would be" if William should ask to marry her. What had she decided? Why?

Kit had already decided that her answer would be "yes".

Ever since the day of William's house-raising, when the neighbors had gathered together and, working from dawn to sunset, had raised a fine imposing frame and nailed the sturdy new clapboards in place, Kit had known that William was only waiting a propitious time to speak. She had long since decided what her answer would be. As William's wife she could come and go as she pleased. There would be no more endless drudgery, and she could snap her fingers at a woman like Goodwife Gruff. Besides, William admired her. In spite of the fact that he was often bewildered and scandalized, he was still as infatuated as he had been that first Sabbath morning.