(You can be both

)
Ella left the room as quickly as possible and returned to the Great Hall. She sat next to Harry. He had a demanding look on his face, and Ella took his hand in hers. Guess she wouldn't be needing that potion!
"Getting rid of Draco. Spell gone wrong," she smiled. She could tell that he understood. She guessed many things like this had happened to him in the past.