V.e. Schwab said this quote

«This is why I run.»Because caring was a thing with claws. It sank them in, and didn't let go. Caring hurt more than a knife to the leg, more than a few broken ribs, more than anything that bled or broke and healed again. Caring didn't break you clean. It was a bone that didn't set, a cut that wouldn't close.It was better not to care - Lila tried not to care - but, sometimes, people got in. Like a knife against armor, they found the cracks, slid past the guard, and you didn't know how deep they were buried until they were gone and you were bleeding on the floor. And it wasn't fair.