ooh... pining!Jack. I like him. All the angst. I have one in my head that starts with Sam actually going through with the wedding to Pete (for whatever reason) and Jack just can't deal with that so slowly pulls away, moving to DC and just kind of ignoring it all. All the time pining away. Only to realize he can't actually live without his friends in his life.

To me that sounds like Jack. He's stubborn and can be a real ass but he's a good guy that will do the right thing in the end.