Chillingworth emerges from the crowd at the event of the election and violently yells at both Hester and Dimmesdale. Dimmesdale finally admits his secret and reveals the letter "A" imprinted into his skin on his chest, and then dies, finally escaping Roger Chillingworth.
Chillingworth suggests that Dimmesdale could have successfully escaped him during the period when they were both staying in the wilderness, away from the prying eyes of the town. He believes that if Dimmesdale had chosen to leave civilization and live in seclusion, he would have been free from Chillingworth's manipulations.
Chillingworth reminds dimmesdale of his sin and is party for the reason that he confesses and assends to heaven. He causes pain in the life of dimmesdale
Chillingworth catches Dimmesdale sleeping and thrusts aside the vestment to discover the letter A upon his chest. After this, there is no doubt in Chillingworth's mind that Dimmesdale's is Pearl's father.
Chillingworth moves in with Dimmesdale under the pretext of providing medical care, as Dimmesdale's health is deteriorating. However, Chillingworth's real intention is to further torment Dimmesdale by exacerbating his guilt and inner turmoil over his affair with Hester Prynne. It allows Chillingworth to closely observe and manipulate Dimmesdale, ultimately seeking revenge for the betrayal.
Chillingworth catches Dimmesdale sleeping and thrusts aside the vestment to discover the letter A upon his chest. After this, there is no doubt in Chillingworth's mind that Dimmesdale's is Pearl's father.
Roger Chillingworth wants revenge on Reverend Dimmesdale for having an affair with Hester Prynne. He seeks to torment Dimmesdale as he believes Dimmesdale is partly responsible for the shame and suffering that Hester endured. Chillingworth aims to expose Dimmesdale's guilt and hypocrisy.
Hester Prynne reveals to Reverend Dimmesdale that Roger Chillingworth is her husband. She discloses their secret marriage and the fact that Chillingworth is seeking revenge on Dimmesdale for his adultery with Hester.
Chillingworth climbs the scaffold to witness Dimmesdale's public confession and moment of anguish. He wants to observe Dimmesdale's downfall and suffering as revenge for the affair with Hester Prynne. It is symbolic of the emotional and psychological torment that Chillingworth inflicts on Dimmesdale throughout the novel.
He pretends to be Dimmesdale's doctor.
Dimmesdale realizes Chillingworth is not the friend he thought he was. He decides to dismiss Chillingworth later on and not take in his remedies. Hester basically told him that Chillingworth is her husband and he's out to discover his secret.
Roger Chillingworth approaches Dimmesdale just as he invites Pearl and Hester to join him near the scaffold.
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.