The Ladies Rewrite the Rules

I feel like the story drones on, and could have been wrapped up in 100 pages or even less with a happy ending. 

Summary: When Diana Boyle discovers the existence of a directory of wealthy single women being used by the bachelors of England to find wives who will improve their financial situation, she decides not only to confront its author, Maxwell Dean, about his having painted targets on the backs of the women included in it, but also to plan with the ladies how they might use their inclusion in the directory to flip the social script and gain some control over their romantic destinies in a society that would not usually afford women this ability.