[Thor's lips draw tight into a line. If it were only that simple. If only Thor knew the answer to that. He bumps Loki's shoulder with his absently, a reassurance of the here and now.]

I don't... [He heaves a sigh, rubbing his eye with a hand.] I need to-- keep going, somehow. If I stop, I fear that will be it.

[Stopping means he's done, that there's nothing left that can be done. He can't bear the idea of that, pointless as it sounds. He stops for a moment before looking at Loki, something helpless in his eye.]

I don't want to work in that office by myself. I want you there with me.

[I need that.]