The Unwritten Rule by Elizabeth Scott

Everyone knows the unwritten rule: You don't like your best friend's boyfriend.

Sarah has had a crush on Ryan for years. He's easy to talk to, supersmart, and totally gets her. Lately it even seems like he's paying extra attention to her. Everything would be perfect except for two things: Ryan is Brianna's boyfriend, and Brianna is Sarah's best friend.

Sarah forces herself to avoid Ryan and tries to convince herself not to like him. She feels so guilty for wanting him, and the last thing she wants is to hurt her best friend. But when she's thrown together with Ryan one night, something happens. It's wonderful...and awful.

Sarah is torn apart by guilt, but what she feels is nothing short of addiction, and she can't stop herself from wanting more...

Elizabeth Scott creates another fantastic book. Sarah is a selfless girl to her very demanding best friend Brianna and she is torn apart by what she feels for Ryan. These characters are very brilliantly developed. I could relate to feelings that the characters had, both in friendship and romance. The plot was very character driven, but it worked really well for the plot. I really enjoyed it. I highly suggest that you read this book. It is a fun romance.