The new girl / by Laurie Calkhoven ; illustrated by Arcana Studios.

Enhanced descriptions from Syndetics:

Each reader can imagine herself as the main character of this interactive story set in the world of Innerstar University!, She thinks Zoé, the new girl, is brave for coming all the way from her home in France. She wants to get to know Zoé, but she also feels a bit jealous about all the attention the new arrival is getting. When a couple of girls start to tease Zoé, she feels torn--can she find the courage to speak up for what she knows is right? With more than 20 different endings, girls will enjoy this book again and again to see how different decisions change the story. Plus, each book comes with a secret access code to unlock additional endings online! Paperback books also include visitor access to Innerstaru.com, a limited time access code to an interactive online world (code available in paperback books only).