It was a long journey and Blade could see tiredness on You's face, or maybe it hunger, or something else. He really can't tell which was it but he feels that there's something wrong with her expression. He's not the best in reading women's expressions. He was the one assigned to show you the ropes of being a Stellaron Hunter, he's not that cruel to leave You figure out things and fight alone—he already did that. Blade chose not to help her when they ran into a doomsday beast. In his defense, he's trying to figure out her skills and to make it up to her, he'll take her out for a meal.