Stalker Girl — Rosemary Graham

Carly never meant to become a stalker. She just wanted to find out who Brian started dating after he dumped her. But a little harmless online research turns into a quick glance, and that turns into an afternoon of watching. Soon Carly is putting all of her energy into following Brian's new girlfriend--all of the sadness she feels about her mom's recent breakup, all of the anger she feels over being pushed aside by her dad while he prepares for his new wife's new baby. When Carly's stalking is discovered in the worst possible way by the worst possible person, she is forced to acknowledge her problem and the underlying issues that led to it.