This right here, explains the whole scene when Harry dances with Hermione. It's actually one scene that wasn't in the book that I absolutely loved in the movie, 'cause it showed how much Harry really cares about Hermione as one of his best friends.
The Perks of Being a Wallflower // But I do think it is true. We will never accept someone too good for us and if we accept someone bad for our health, it is because you think you deserve it. But believe me, you deserve better.