It's right on the tip of his tongue to add and to think before I speak, but he has just enough self-awareness to realize that saying so would defeat the point of that very lesson. So he just nods, lowering his gaze from hers. He still doesn't exactly like her, of course, yet she cut his legs out from under him without breaking a sweat and despite that, she's still deigning to not only give him the time of day, but steering his thoughts in a wiser direction.

With the stomachache a reminder of his foolishness, Thor takes a breath and says, "I must apologize to you, spirit. My behavior was unbecoming of a king." Ouch, that hurt to say. Humble pie is even worse than the candy.