If this Loki thinks that Thor would not miss him too, he's gravely mistaken. But, of course, he has no talent for mind magic, and knows not where his brother's thoughts have gone, assuming them to be fear for his double, sadness and grief at the loss he seems to think is inevitable.

Thor knows what it's like to lose family and not get to say his goodbyes. He'd hastened to say them on Svartelfheim, and no matter how Loki mocked his words with theater after, he doesn't regret saying any of it. He would have Loki - any Loki - know that he is loved, before the end. Whether he believes it or not.

He clumsily pats at Loki's arm in thanks, and stumbles his way out of the pile of slumbering revelers in search of the guest of honor.