Here's something I didn't know: season 1's order is only 12 episodes. Don't know if they'll get a back nine for the rest of the season or if 12 episodes is it. Also, don't know how many episodes next season will be. If it's just 12, they're following the cable formula now for dramatic series.
I got the impression that it was the nurse back home, but I could be wrong - I still need to go back and watch them again. Such a bittersweet night it was, but, if it was the final episode, then I couldn't think of a better finale.