When the principal announces that every senior must participate in a mandatory year-long Marriage Education program, Fiona Sheehan believes that her life can't get any worse. Then she marries her "husband"--jerky jock Todd, whose cheerleader girlfriend, Amanda, has had it in for Fiona since day one of second grade. Even worse? Amanda is paired with Fiona's long-term crush, Gabe. At least Fiona is doing better than her best friend, Marcie, who is paired up with the very quiet, very mysterious Johnny Mercer.