He sheltered Charlotte from her father and sister after they beat and starved her, and in the process, he developed feelings for her. His final revelations is that Charlotte is actually Grandmother Cutler's daughter, the product of rape by Grandmother Cutler's father.
He protected Charlotte from her father and sister, who would beat and starve her. In doing so, he developed feelings for her. His final revelation is that Charlotte is actually Grandmother Cutler's daughter, the result of rape by Grandmother Cutler's father.