He absolutely does the what would a normal person do/say commentary, in every situation. He talks about how he misses people's jokes, which they illustrate excellently on the show.
I LOVE the icon. lol
I wonder if it's not really a combination of the three things. I don't know if it comes out in the series but in the books, he recognizes Cody and Astor as being like him. (shit I hope this doesn't spoil anything.)
He does seem detached but he tries and why try if you don't feel something. I mean he seems to want to comfort Rita at times, he enjoyed the BJ and was ok if their quiet conversations included more sexual activity and yet, he's inappropriate and often removed.
Hee, I'm not sure I'm making much sense...it's still early and I haven't been awake long. ;)