This obsession to save Dean? The way you two keep sacrificing yourselves for each other? Nothing good comes out of it. Just blood and pain. Dean’s your weakness. The bad guys know it, too. It’s gonna be the death of you, Sam. Sometimes, you just gotta let people go.
Alright so I just want to point out how close the brothers are - and then Dean pulls Sam even closer. I mean this is pure relief. Pure ‘I am so glad to see you, man. You’re alive and you’re doin’ okay and I’m gonna take care of you now and you don’t have to worry about a thing because I’m here and I love you.’