what is similar and different about Chillingworth and Dimmesdale?

In many ways the two men share a bond through Hester Prynne. Chillingworth is in a victim of infidelity. To be sure Chillingworth entered into a loveless marriage with a woman who was way younger and better looking than he was. He was rendered a cuckold though (man whose wife cheats on him). Dimmesdale too is affected by Hester's infidelity. Although he was the "lover" he could not live with the ethical and spiritual implications of his affair. So both men were in extreme pain over the same woman. Chillingworth was, however, malicious and evil. He got his kicks out of torturing Dimmesdale and seemed to have few redeeming qualities. Dimmesdale seemed like a good man shackled by the ridiculous edicts of his Puritan faith. He struggles to do the right thing and eventually comes clean. We can't say the same thing for Chillingworth.