She had no one and she needed somewhere to store her thoughts. So she decided to write them down, that's why she has a diary. Or had one. Now it is lost out there in the cold, dark world because of a clumsy mistake. And you know one clumsy mistake leads to another until you have a big pile of clumsy mistakes. But then they slowly start to turn into fixable mistakes, then good mistakes, and finally into the point where they're not mistakes anymore. That is exactly what happened to Sophie Anderson and Harry Styles.