Rose knew how bad messing with time could be and when The Doctor's grip became bruising, she looked at him steadily and nods. She didn't want reapers thank you very much. "What do I do?" She asks having full faith that he would be able to fix what she had done wrong. He had done so before and she didn't doubt he wouldn't again. She didn't mind that she would bruise later because of his touch. He didn't mean to, and besides he was stronger than a human as he liked to say.