hunenka:

…aaaand here we go again with Sam telling Dean how Dean feels, and
telling other people how Dean feels and why they don’t really need to pay attention to what Dean thinks or says because it’s just Dean being Dean. 

And just like last season, or in season 2 after John’s death, Sam is overly focused on how Dean is dealing with grief and
loss.

Also, I’m pretty sure that Sam making Jack his new Overcome
Your Inner Monster project is strongly motivated by Sam looking for ways to
avoid having to deal with what’s happened. It’s not just Dean who buries himself in work to forget the pain.