Hush, Hush by Becca Fitzpatrick

I give this book credit for dealing in fallen archangels instead of in vampires. But otherwise, you've got a Twilight-copycat type of book here. There were some mild surprises throughout the story, but I felt like the situations rang false and the characters' actions even more so. Vee, the sidekick/best friend, was a cardboard cut out, and I thought the mythology/powers of the angels was neither clear nor well thought out.