The author must have just watched for the first time Marty screws everything up in the first place by pushing George away from the car that was supposed to hit him for Lorraine to initially develop a crush on him because George is the unconscious guy she takes care of not Marty and George wasn't hit by the car running from Marty either he fell out of the tree being a peeping tom on Lorraine's mother he was always going to be right there at that moment