The numbers don't add up. She was taking care of him for 10 years, but all those things with losing her husband, getting sick, her daughter being born, and then losing her daughter, all happened during those 10 years while the dragon was living with her? If he had lived with her for 10 years, why would he not have asked about these things in the beginning? He would have seen her getting pregnant and giving birth during that time, so he should have already known about the daughter.