She didn't want to continue their conversation. Being around Draco made her uncomfortable. Maybe she was feeling guilty about walking out on him. Or she was worried that she was leading him on. The sex had been amazing, but she wasn't anywhere as invested in it as he was if he was claiming he might be falling in love with her. She wanted to go back inside her home and try to forget this conversation ever happened. If she got distracted, she might not be able to complete her mission. Failure was not an option.