what does chillingworth intend to do and why?

Chillingworth intends to keep his identity secret until he finds out the identity of Hester's lover. He also works to get close to Dimmesdale to find out what is troubling his heart.

chillingworth desperately wants to discover the identity of hesters lover; Father of pearl, also he is in the process of creating a relationship with dimmesdale to find out what troubles his heart.