Eli wondered if he was in shock, if that was the thing keeping Angie’s death from sinking in the way the knife had. He wanted to care, he wanted to care so badly, but there was this gap between what he felt and what he wanted to feel, a space where something important had been carved out.
I don't think this lack of caring about Angie's death has to do with whatever was taken fron Eli after his death, or at least not entirely. Victor made observations prior to any E.O. experiments that Eli didn't seem to have much in the way of attachment to Angie.
