Who questions Hester about her partner in the scarlet letter?

In "The Scarlet Letter," Hester Prynne is questioned about her partner, Dimmesdale, primarily by Roger Chillingworth, her estranged husband. He arrives in the community after her public shaming and seeks to uncover the identity of her lover. Chillingworth's probing and psychological manipulation intensify as he becomes increasingly obsessed with finding out who Dimmesdale is, believing that revealing him will satisfy his desire for revenge.