This is one of those books that remind me why I love a certain genre (in this case, chick lit). It has everything I could wish for, and then some: humor, drama, romance, family crisis, surprising twists and turns... Like I said, everything.Roxy Rule is one of those impossible-not-to-love characters. She's funny, she's friendly, she has an amazing family and a hot best friend. I really loved Roxy. I was rooting for her the entire novel and I was wishing she'd end up with the love of her life, Ollie. Just when things get complicated and she starts to doubt everything in her life, from her job, to her boyfriend, her two sisters knock on her door, needing some time off from their own lives. Her younger sister is pregnant with an unknown man and her older sister just broke up with her boyfriend. I liked how Roxy tries to protect her sisters and hide the fact that they moved in with her from her parents. And I liked that out of all the sisters, she was the least judgmental one, the one that just listens and waits for things to unfold, the one that doesn't try to pry.Ollie is Roxy's best friend since infancy. I liked him, even though he gave me a big surprise near the end of the book. I don't know how I would've reacted if I were Roxy, but I liked the fact that in the end Ollie makes things right and he makes the right decision. He's been in love with Roxy for a long time, but he doesn't act on it. I liked that he doesn't force things, though I would've expected more resistance towards all the crap his girlfriend was throwing his way.I think the subject of love between two best friends is a dangerous subject, but Cat Lavoie wrote a beautiful story and I had a lot of fun reading it. For me, it was one of those books that you start reading and the next thing you know, it's a few hours later and you are reading the last page.If you love chick lit, you definitely need to read Breaking The Rules.