Siorla is a character influenced by trust and interest. Her quest steps will be based on both progress with the students as well as her own stats. From 7am to 4pm she is in the high school. From 21 until 24 she is home. The exception being after stage five of the main quest, on saturdays at 21 till 22 she is at the strip club. From 16 to 21 she is in random locations. Or all day in random locations on the weekends.