This deceptively simple novel about first crushes is a lot like real life -- sometimes too much so. There is hardly a character, major or minor, adult or child, who is really likable, though a few, such as Bryce and his grandfather, drift toward likability by the end. They all mess up, usually repeatedly, and mostly through selfishness and lack of understanding and compassion, just like real people. And most of them change -- and change again.
The alternating narrators device in FLIPPED adds another realistic layer to this multilayered book. Bryce and Juli describe the same events from their points of view, and they do so with surprising honesty. The differences in their versions come not from trying to hide the truth or justify their own behavior, but from genuinely seeing things differently. They both behave badly, Bryce especially, but they're both able to face that and to attempt the always difficult process of conscious change.