Fated by the Marquess by Madeline St.James

This is book two of "A Rogues Courtship" series. Here we have a fallen lady who was befriended by Lady Catherine from the last book. Lady Catherine tries to raise Lady Claire back into society, but doesn't realize that Claire has been having a relationship with a Marquess who disappeared six months ago. This story has many twists and turns, and the one thing I realized that Christopher kept going back to that bordello every month, because he had fallen in love with Claire. This is a delightful tale and I fell in love with the man that Christopher is.