I think it's a constant struggle between Captain Jack and Honest Jack to win out. I think Honest Jack is who Jack *really* is, and he's had to adopt the Captain to cushion himself against the realities of the harsh world. Which may be why he's similarly annoyed with and attracted to (whether you think it's sexual or merely friendship) Will - who manages to remain largely honest in spite of the hard, cruel world.

Thanks for the FB!