The Soldier tries a smile, worn out now, but kind of relieved. If that's true, then maybe they're just over-reacting. Associating too strongly with the doctor with the bow tie. Interpreting cues incorrectly. It's possible, especially with an angel that might show things differently than a human would, right? "It's okay. I tend to over-react, too." Hence the whole shut-down problem. The tendency bleeds over into most things.