How Dean "Ruined" Christmas

Dean buys an Elf on the Shelf. He thinks it will bring warmth to Sam, cas, and him, even the bunker. When Dean places the Elf on the bookshelf, he doesn't feel quite right about it. He thinks it is doubt, thinking no one will notice or no one will care or both. He feel as though he isn't ever doing enough for cas and Sam. He shakes off his doubtful feelings and places the hat on the elf's head. "I'll call you Ollie." He says to shake off his nerves. Days pass by and sam is busy studying cases and cas is helping sam. No one seems to care. Suddenly, the mood of the room changes, not in a good way... Is Christmas ruined???