Zhao Yu was in a dilemma that he couldn't express. Initially, when he demanded things, he was to see if this woman had murderous intentions towards him and if she was planning to betray him after using him.
Based on the results, he chose not to resist, and safely carried her out.
He even thought that he might really receive weapons and food.
But from her conversation with Black Rock City, it became clear that her mission was of utmost importance, and the contents of her backpack were crucial.
Because he wasn't sure of the importance of the contents, Zhao Yu was worried about staying around and being killed by those coming from Black Rock City.
Rose seemed to understand Zhao Yu's concerns. After considering for a moment, she tossed her gun to him and also took out several compressed biscuits from her backpack, throwing them to him.
"If you're too scared to take anything else, at least take these as payment," she said.