Explain Chillingworths Attitude toward Hester. What does he intend to do and why?

Chillingworth is more interested in finding who Hester had her relationship with. Chillingworth is kind of nice in a slimy threatening way to Hester.

Chillingworth tells her that he forgives her, and he accepts the blame for having married her. She says, “thou knowest that I was frank with thee. I felt no love, nor feigned any.” He asks Hester who the father of Pearl is, but she refuses to tell him. Chillingworth then laughs and says, "He bears no letter of infamy wrought into his garment, as thou dost; but I shall read it on his heart."