Do you think Dean would have ever forgiven Castiel? (Spoiler 13 season).

In chapter 13x21 in the cave the vampires kill Sam and drag him away and Dean tries to go after him but Castiel prevents him.

I wonder what would have happened if Lucifer hadn't brought Sam back to life.

Personally, I didn't see that anyone other than Dean and Jack was affected by Sam's death, and not even Mary seems affected, which bothers and angers me a lot.

What do you think would have happened to Dean if Sam hadn't come back? Do you think Dean would have ever forgiven him?

What do you think of this moment?