Season 9 alternate ending. Castiel decides to save Dean Winchester, just as he has always done.
Dr. Frederick Chilton is defiantly a cat person and most certainly not a crazy cat lady because cats are classy, thank you very much. (Or his life as told through the many times in which Frederick appreciated his little furry friends).
Sam has a sudden revelation as he wakes up the day before Valentine's Day and now, he is determined that Dean and Castiel will finally admit to each other's feelings and be each other's Valentines. Or: Sam knows, but Dean and Castiel are clueless.