Rick Yancey said this quote

They were afraid the longer we pretended to be human, the more human we would become.”“And who would want that?”“I didn’t think I would,” he admits. “Until I became one.”“When you…‘woke up’ in Evan?”He shakes his head and says simply, as if it’s the most obvious thing in the world, “When I woke up in you, Cassie. I wasn’t fully human until I saw myself in your eyes.”And then there are real human tears in his real human eyes, and it’s my turn to hold him while his heart breaks. My turn to see myself in his eyes.Somebody might say that I’m not the only one lying in the enemy’s arms.I am humanity, but who is Evan Walker? Human and Other. Both and neither. By loving me, he belongs to no one.He doesn’t see it that way.