I'm feeling if Show takes the time to stop and have Sam apologize, than Dean needs to apologize as well, and in as clear and emphatic a way as Sam did here. Not just that blanket, "clean slate" thing he did a few seasons ago. I'd like him to look Sam in the eye and say, "I'm sorry for not listening to you."

Also, in my head, Dean is forever pining for Sam, it's just everyone else who misreads it. ;)