Love Song — Anne Park

When Dennis, a popular senior, asks Elizabeth for a date, she's so surprised and happy she's practically floating on air. She's never liked a boy as much as she likes Dennis.
But can their relationship ever work out? Dennis comes from a wealthy family and Elizabeth's mother can barely make ends meet. Worse, Dennis refuses to go steady. He says he likes Elizabeth but he keeps going out with other girls. Especially perfect Melissa who comes from the "right side of the tracks".