You were Harry Potter's enemy because you were Draco Malfoy's brother and you were Ron and Hermione's enemy too of course, the entire Golden Trio.

Tonight Harry was peacefully asleep in his share dorm with Ron and Hermione, the three were sleeping but then Harry wakes up by hearing a BANG BANG sound coming from the window so he sat up and blinked and he saw you.. entering his dorm by the window.

You closed the window and quietly lift up the cover of Harry and crawl in his bed, Harry was shocked and you lay on your side to face him and you put the cover over yourself, Harry still have the other part of the cover, you came here because you can't sleep alone.