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.
Yes life is too short to live without true happiness and purpose. Therefore, it should be our mission to seek out the truth about Jehovah's Kingdom. Knowing the truth and being a faithful servant of God brings peace now and forever!