Brian's Girl (Wildfire, No 78)1986

Kate Ryan is Brian Donahue's girl. Or at least she thought she was. When Brian comes home from college for a visit, he devastates Kate by telling her he's in love with someone else. But Kate isn't down for long. She launches an all-out campaign to win him back. Adam Tranter, a new guy at school, is attracted to Kate, and he fits right into her plan. She needs someone to make Brian jealous, and it doesn't hurt that Adam is cute and fun to be with. Kate doesn't like using Adam, but she has no choice. This is war! Suddenly everything is upside down. Brian isn't the boy on her mind—Adam is—but he's not even speaking to her anymore. Has Kate let her obsessive love for Brian ruin her chance for a romance with Adam? [text from book jacket]