Out of Control — Francine Pascal

Mad at the world...

Aaron Dallas, the handsome co-captain of the Sweet Valley High soccer team, used to be friendly and likeable. But suddenly he's changed. He explodes whenever the smallest thing goes wrong, and lashes out at everyone, including his teammates and his girlfriend, Heather.

Elizabeth Wakefield is concerned about the change in Aaron. Her boyfriend, Jeffrey French, is Aaron's best friend. Jeffrey keeps making excuses for Aaron, and Elizabeth can't persuade him that his best friend really needs help-until Jeffrey himself becomes the target of Aaron's rage.