4.5 Stars. I really, really enjoyed this book. I wasn't completely taken with the protagonist, Lena, (which is the only reason why I'm not giving the full 5 stars), but I was totally in love with Alex, her love interest. I loved the world, and I was completely absorbed into this society that feared love so much that it was basically illegal to have any kind of meaningful relationship. I hope that we get to see more of Lena's mother, because she is utterly fascinating. This book was full of twists and unexpected turns, realistic relationships and numerous strong, admirable female characters. I loved it.