Describe the way Hester and Dimmesdale interact from Chapters 16-18?

They are both more truthful and passionate. It is the image of the forest as the wild place where can passion can flow returns in these chapters. In chapter18, however, Hester finally disposes of the scarlet letter, and Dimmesdale takes his place as Pearl's father, welcoming her with love. The sunshine breaks through the darkness of lies, shame and ignorance, and for a brief moment light shines on this newly reconciled, peaceful family.