Sam loves Dean, and Dean is super overprotective of Sam because he loves his brother right back :) it's what family does. So if anyone says that Sam doesn't love dean as much as dean loves Sam just read this post
The Boy Soldier. I have a headcanon that if Dean’s soul were to ever manifest into a physical form, it would take the shape of a small boy, because deep down, he’s still that lost little kid who was forced to grow up too fast.
"Hush little Sammy, don't say a word, your brother's gonna make sure you don't get hurt. And when flames burn above your head, your brother's gonna do what your father said." ----I'm not crying there is just salt in my eye.
31 Times Nigel Thornberry Unexpectedly Brought Light Into The World
This is interesting.I kind of agree, but kind of not at the same time. SAM COULD HAVE SAID SOMETHING if it were true. Just a little, "I thought you were in heaven, Dean" and that would've changed everything. I'm sad Sam didn't ever explain.