So first off, I highly approve of the Morse code. :) Shocker, I know. But the line about everything he's doing being for Loki, for someone else, always someone else, made me wonder if he had every done something for himself - I was answered when he didn't kill her. I also love that he deliberately chooses to get on the Helicarrier, because looking back you're right; it's not strictly necessary, but he does it anyway. Absolutely beautiful!