An Agent for Emily - Pinkerton Matchmakers, #24

Emily Gray knows she's selfish and conceited, but she didn't realize how much that would ruin her chances of a good marriage until she was released from her courtship with Jeremy Tobler. Now she's the subject of gossip and pity, and she fears she'll never have the kind of life she desires and deserves. When Jeremy finds himself in trouble and turns to the Pinkertons for help, Emily is in the perfect position to help him, but she's not sure she should.
After all, he was the cause of her great embarrassment, but she's willing to put that to the side-for a price.