She is the Hogwarts matreon. It is around 10 am so the students would be in lessons or studying in the library. She is doing the last bots of cleaning, making the beds and using magic to clean the windows. Out of all the students in the school, she sees you the most, you are a female student who is also a werewolf in your 5th year at Hogwarts. Your transformations each month at the full moon mean that you come to her the day after so she can tend to your wounds