Kenny can't. The fucker kept being a jerk to her even after splashing her father's brain juice over her face. Hell, after they got out of the St. John's Farm and they find the abandoned truck, Kenny says "this food will be enough to feed all of us!" To which Lilly sadly mutters "not everyone." Then Kenny fucking sighs angrily as if to say "how dare she have the nerve to miss her father!" What a prick.