Over You by Nicola Kraus

The authors of the bestselling novel The Nanny Diaries, Emma McLaughlin and Nicola Kraus, bring you the story of a girl who gets her heart broken…and figures out a foolproof way to get over her ex.
 
Over You’s Max Scott had a hard time getting over Hugo, the boy who dumped her. Now it’s Max’s mission to help NYC girls get over their broken hearts fast, and with dignity. Now Max’s life is better than she ever imagined it could be. Her new business, Ex, Inc., is booming. Better still, her friendship with Ben, a truly sweet guy, could turn romantic. But when Hugo reenters the picture, Max realizes that she isn’t over him. At all.

Funny, touching, and romantic, Over You is the kind of book every girl will fall head over heels for.