Bittersweet by Miranda Beverly-Whittemore

Ordinary Mabel finds her college freshman roommate, Genevra, to be beautiful, mysterious, and super wealthy. And to think that Genevra wants to be friends with Mabel and invite her to spend the summer with her family!

This summertime book has everything - romance, dinner parties, skinny dipping, and family secrets.
The only things that take away from the book are a weak ending and some unsatisfying answers. But if you're looking for a book to read by the pool or on the plane (this would be an excellent choice for a flight to Asia or Europe!), consider this one. Not the best book, but it is engrossing.