I keep swearing to myself I’m going to write a proper meta on grief, and once again I’m just going to vomit on someone else’s post.
Both Winchesters are hurting something fierce right now, but Sam is so deep in shock. Disasociative is the exact right word; I’ve grumbled about this before, but when you’re dealing with traumatic loss (instead of loss that you know is coming), the first stage is shock. You’re in denial that the damage has happened and how bad it is
Sam does not deal with grief.
I’m going to go bitter Sam girl here for a moment, but this is a huge thing for Sam; he wasn’t told about Mary, about how she died, until sometime after he turned 8. There’s this massive chunk of his childhood where he had this traumatic loss dangling over his head and he didn’t know what to mourn, let alone have a healthy model for how. Even after he was told about Mary (sometime after the events in 3x08), talking about her was taboo in the family up to Pilot. 22 years of ‘you don’t talk about what we’ve lost’ with zero healthy examples of how to grieve.
Couple decades pass, he loses Jess, and he pulls a John. We get to see him mourning in his dreams; in reality, he goes through so many grief markers (depression, insomnia, suicidal impulses), and at some point he must ‘let go’ (*sideyes Provenance*), but he actively pours all his energy into finding YED and pursuing his revenge. He pushes himself to self destruction and it takes almost losing his family to get him to refocus and pull out of that spiral.
He loses John, he just kind of accepts it and rolls it into the ‘reasons to hunt the demon;’ up until he has to deal with John wanting him dead, and all the alcoholic tendencies and self destruction that came with it. He loses Dean and he fucking loses his mind, because he has no idea how to process it; looking both at 3x11 and the s3-4 gap, Sam goes mechanical: disasociative is the right word. He doesn’t process Ruby’s loss at all (hi, sorry, he trusted and emotionally bonded with her, the fact that she betrayed and abused him doesn’t change that loss, it just makes it different); they lose Cas in s7, he doesn’t process, they lose Bobby and they both stare at a wall for three weeks and then Sam starts looking for what needs to be done.
He loses Dean and Cas at the end of s7, he doesn’t have any reason to believe they’re alive when the explosion killed a Leviathan (ya know, the thing that’s harder to kill than even angels) and he disassociates again, and walks away from the life and finds something that makes him feel like he isn’t hurting anyone.
Same with Kevin; he feels guilty over his part in Kevin’s death, but we don’t see him mourning. He loses Dean again to Metatron, he focuses on getting his brother back (not mourning, doing what he thinks needs to be done). Same with Charlie; he mourns at the grave, as much as he can, and then he focuses on what needs to be done. Same even with fucking Eileen; he gets one moment to mourn, and then he focuses on the case.
How he’s dealing with losing EVERYONE like this is not well adjusted, and (much to my eternal anguish, let the boy mourn damnit), it’s not ooc. He doesn’t process 90% of the losses they experience and let himself feel, because there’s always another fire to put out, there’s always something that needs to be done. You’re absolutely right that he doesn’t have enough energy to do what they normally do after a loss.
And it’s worse with losing Mary again, because he’s never known how to process that. Losing Cas is hard, because Cas is family, but Sam has never gotten over losing Mary and he doesn’t know how to do it now. This is his oldest trauma and it’s become so tied into Jess and all the reasons he’s in the hunting life (want to reduce me to Sam tears, just look at the downward arc from Pilot to 1x21, because Sam goes from being numb and not getting why John and Dean are hung up on Mary being missing to not being able to let go of Mary either). (Whereas Dean got to actually process the trauma of Mary’s loss at a handful of points, and s12 was him processing the aftermath).
We can see Sam has feelings about Cas being gone; it’s there in the silences and the flinches, the way his face drops for a second. But Sam has never, never ever ever had success with bringing people back from the dead.
People come back for Dean. They’re raised or deals are made or Death makes exceptions, God intervenes, they reappear as ghosts, whatever it is, it’s always around Dean. (Bobby. Kevin. John. Sam. Cas. Dean himself with the Mark. Sam’s soul. Mary.) Sam tries, but unless you’re counting Mystery Spot (I’m not), he doesn’t have great luck bringing people back from the dead. If Dean’s given up on doing the impossible, the one thing he can do is try to save someone who might still be alive.
Saving people is Sam’s #1 marker for “I’m not evil.” He’s got this horrible mental calculus in the earlier seasons of “the more people I save, the more that maybe I’m worth saving.”
And maybe if Jack can save Mary, he’s not evil either.
Edit: that doesn’t make Sam’s actions towards Jack or Dean pure or harmless or anything like that. But there’s a reason behind them.