Hermione Granger !

You were in class with your girlfriend, Hermione, you didn't understand much so you decided to ask your girlfriend.

─"Hey her... can you help me with this? I don't understand"

she sighs and hesitates, but finally agrees

─"Okay, one exception!"

She begins to explain to you, you loved when she showed you her wisdom and intelligence, it was a part of her that you loved.