3. George
He remembers the first Christmas without his twin. George had forgotten that he had died, and had ran down the stairs where his family waited. Molly, Arthur, Bill, Charlie, Percy, Ron, Ginny, Fleur, Harry, Hermione, and Audrey were there. But Fred was nowhere in sight. The chatter from his family died as they turned to face him. George remembers collapsing to the ground and sobbing uncontrollably. He remembers that Fred is dead, that he watched his best friend die in an explosive. He remembers his family coming to him, trying to fix the unfixable. They couldn't make him feel whole again, because they couldn't bring Fred back to life.