what decision does eliza harris arrive at in chapter 3 and what is her motivation?

Even though her husband decides to flee to Canada, Eliza decides to stay. Women, as revealed by both Eliza and Mrs. Shelby, are more pious than male characters in the novel. This is an attempt to appeal to the moral conscience of female readers, inspiring them to question their husbands as Mrs. Shelby did. So too, the theme of the break up of the family should strike a chord with female readers as it shows how slavery destroys a mother's inherent bond to her child and invades the sacred relations between a wife and her husband.