Jamie McGuire - Happenstance

Erin Easter, one of three Erins in the small senior class of rural Blackwell High School who not only share a first name, but also their birthday. Erin Easter, raised by a neglectful single mom, keeps to herself and admires Weston Gates from afar. The other Erins, Erin A. and Erin M. are the darlings of the community: daughters of the two wealthiest families in town, best friends, cheerleaders, and everything Erin Easter isn't--and they never let her forget it. Erin A. has even claimed Weston since the 8th grade.
Weston is a well-liked star athlete, and the son of two prominent attorneys. He struggles daily with the pressures of living up to his family name and secretly empathizes with Erin Easter's feeling that she belongs somewhere else; in a different life. Not until he begins sneaking nights out with Erin does he gain the courage to buck expectations and acknowledge his feelings ... both for his future, and for her.
But when a shocking tragedy rocks the tiny town, Erin's life is turned upside down in the best way possible. But when the truth is revealed and everything Erin thinks she wanted falls into her lap, life only becomes more complicated.