When Nightwalker hears this there something that clicks in his mind and emotion. He cant tell if he love the blood, the death, the Gore, or that he hates what she said because it reminded him what he did to his parents. Either way he just sits there with these emotions deciding whether or not to follow one of these emotions or to not respond at all. He finally saids "I don't know." After he said that the 1st bell rang and he once again turned around and walked to his seat.