He didn't remember anything, not a single thing? That was a good thing, a very good thing. He wouldn't have to explain anything about Mary. But... now he would have to explain about Adam, maybe? Wait. He didn't remember and the reason he hadn't remembered in the past was thanks to the wall that had been put up. Was Sam destined to repeat the wall crashing down, regardless of interference from Castiel? He didn't want to look at the situation pessimistically, but, at the same time, he wasn't going to get his hopes up.
"Yeah, I've been growing it out. It's such a pain in the ass shaving everyday so I figured, why not?" Dean replied with a laugh and a casual shrug of his shoulders. "So, I bet you're starving. Want me to make you something to eat?"