All you really need to know is Sam Winchester and Dean Winchester are in love forever and everything else is irrelevant.
Sam Winchester is a gift, and I will defend him tirelessly, and fiercely. Castiel is my loveboat. Dean Winchester deserves all the kisses.
Oh, and occasionally NSFW.
After Dean was torn apart by hellhounds and his body was buried in a field, when Sam went back to Bobby’s place he stood in the mirror looking at the blood stained amulet hanging around his neck.
He didn’t wash it off. He wore a part of Dean’s body around his neck until it was gone, rubbed into the skin of his fingers and chest.