[So he'll never be able to truly tell how much time has passed. Well, at least he knows for certain now. As for her explanation, he understands that very easily.] Then you must perform your job extremely well to be in such a position. [Yet this confirms that he should keep an eye on her--and no doubt, she'll be doing the same at some point.]

What do I do? [He laughs softly. The question isn't as simple for him to answer as it was for her.] I am a prince of Asgard, therefore, I have certain duties I must attend to every day. I represent Asgard and the All-Father in his place, and I must also train for battle and to prepare to lead our armies for the day when Asgard's enemies rise up against us.

[One with a small amount of knowledge of Norse mythology may notice he doesn't once mention how he shares these duties (though "share" doesn't even begin to describe how equal this "sharing" is) with his brother, Thor...]