...her rebel sister? i read this book a while ago and would like to read it again and also recommend it to a friend but i'm having a horrible time trying to figure out the name. its about a girl named Chelsea who's about 17 and doesn't have the greatest relationship with her sister (who is dating a bad boy) because her sister thinks she stole her first crush years ago. And I also remember that the main character Chelsea starts dating a college boy whom she tells that she is in college too and the guy she is dating ends up being her little sister's boyfriend, who she accidentally breaks up, further ruining their relationship. I would REALLY appreciate it if you had ANY idea at all what this book is called or who it might be buy. Thanks so much!!