The Cromwell Rules by Ania Ray

Lily Cromwell already knows the best way to prevent a life of tears and unnecessary heartache: be the player. She's cool. Calm. Collected. At 27, she's a successful New York City socialite and a software engineer on the brink of a major promotion. Trained by her mother's ten-commandment "Cromwell Rules," Lily has learned how to play the social game so that she always ends up on top. But when she meets Logan, the game changes.