[He's going to smile because he feels like he has to - because a king can't afford to be scared or shaken in the presence of foes and allies alike.]

You did well, defending yourself until I arrived! I'll try my best to straighten up the room later...

[He sees the blood and bites his bottom lip in concern. The priest is nearby and his skills are useful, but he isn't about to release the man who was poised to kill his master. So instead he opens his gate again and reaches in]

If you can wait a moment, I may have something to help that wound...