Chillingworth is pretty much a leech attached to Dimmesdale. Chillingworth is living and thriving off the pain/guilt he is inflicting on Dimmesdale to the point where he can no longer live after Dimmesdale's death.
Chillingworth was Hester's husband in "The Scarlet Letter." He becomes consumed by vengeance after discovering Hester's affair and assumes the identity of a doctor to disguise his true intentions.
Hester an Chillingworth were married.
Roger Chillingworth was Hester's husband
their married
Hester meets up with Chillingworth in the prison where she is being held for her public shaming. Chillingworth arrives in the colony and poses as a doctor in order to gain access to Hester and extract information about her relationship with Dimmesdale.
Hester's husband
Roger Chillingworth visits Hester Prynne to exact revenge on her for her infidelity. He is her estranged husband, and is consumed by jealousy and anger over Hester's relationship with another man, Arthur Dimmesdale. Chillingworth's visit serves as a way for him to further torment and punish Hester for her actions.
No, Hester did not love Chillingworth. Their marriage was based on duty rather than love, and Hester's heart belonged to another man, Arthur Dimmesdale. Chillingworth's obsession with seeking revenge on Dimmesdale further strained his relationship with Hester.
Dimmesdale is shocked and horrified when Hester reveals Chillingworth's true identity as her husband. He feels betrayed and manipulated by Chillingworth for disguising his true relationship to Hester. Dimmesdale also feels guilt and remorse for unknowingly being involved in the scheme that has harmed Hester.
To get him to admit that he slept with Hester.
Chillingworth suggests that Dimmesdale is suffering because of something that he is not admitting and that something is bothering him (hinting of a relationship between him and Hester.)
Hester's revelation about Chillingworth's true identity as her estranged husband has a profound impact on Dimmesdale. It deepens his guilt and accelerates his deteriorating physical and mental state as he grapples with the knowledge that Chillingworth has been purposely tormenting him under the guise of friendship. This revelation further complicates Dimmesdale's internal turmoil and contributes to his eventual downfall.
Roger Chillingworth is physician & Hester Prynne's husband.