if you really want to get dean + sam’s relationship across in a tldr it’s that scene where sam is like… 8? and complaining about how he has to have plain chex cereal or whatever for dinner and when dean pours out lucky charms for himself sam is like “i want that” and dean goes “you can’t have it i saved it specifically for myself you already had all of yours” and then sam looks at him with eight year old eyes and dean sighs and swaps their bowls. i guarantee sam doesn’t remember that moment. i guarantee dean does and that he remembers a hundred other moments like that but he’s never and will never mention them to sam because he doesn’t think it’s a big deal.