Why Percy Weasley does the things he does.
A monster stole his sister away from him one day and he didn't know what to do.
One day, he brought her by the hand, out into the woods, to watch how butterflies get their wings...
Because there are worst things in life than pretending. (Lost scene to Dragons exist only in fairy tales)
Lavender Brown has a pocketful of starlight for Neville Longbottom.
Ron has a little mission on the night before Valentine's.