What kind of relationships can be seen in the chapters of "The Leech" and "Hester and Pearl"?

In chapter nine, "The Leech," the people of the colony see Roger Chillingworth's arrival just as Dimmesdale's health is beginning to fail as the work of divine providence. Chillingworth gets close to the young minister, and they room together; at this point the narrator refers to them as "the two friends." It doesn't take long, however, for the people of the colony to begin to wonder if perhaps Chillingworth has come from the devil, as they see Dimmesdale deteriorate rather than improve.
In chapter fifteen, "Hester and Pearl," Hester decides that she "hates" Roger Chillingworth, her husband, and feels that he has "betrayed" her. Hester takes note of her daughter Pearl's precociousness and intelligence and wonders to herself if Pearl might become a "friend" with whom she could share confidences. Hester has no one else with whom to share her secrets and sorrows, and she is tempted to confide in her daughter. Ultimately, she thinks better of it, knowing that Pearl is just a child; Hester does not want to take away Pearl's innocence.