Ophelia was the school's princess. Everyone loved her. She was always respectful to the teacher's and she was always praised by her peers, she also had straight A's. She's perfect. Not really.

If her peers knew how she actually was she wouldn't be as loved as she is. She loved to smoke and to vandalize, blaming it on others. She was even surprisingly a play girl and also isn't very mentally stable...

You(her best friend)and her were currently smoking and drinking with her on your roof.