other times , we would escape into the shadows , over walls , or onto the roofs where the infected could n't follow . i knew who he was talking about , and i scowled . instead , she waited patiently until headlights appeared outside her cabin . `` we all make mistakes- '' `` this is n't a mistake . '' i do n't want to think about it now . i pull her back , hardly able to control my laughter . `` well , right before he left , he said the tickets were open-ended . 