It was not Loki's fault, he's sure to point out, several times. It was not his fault that a snow storm came up, knocked out the power and made it impossible for them to leave. It was also not his fault that the generator was ancient and refused to work in such cold.

While keeping them there longer did offer Loki more time to work his long term plan it also made him very uneasy. As a mortal he's truly felt cold for the first time. Only after Clint has gone to bed on the first powerless night does Loki huddle by the fire. He keeps checking and rechecking his hands. The last time he felt anything close to this he turned blue. What does that mean without powers? Well, he was left with a small trickle of power that gave him no benefit other than to his dignity. Could he stretch that illusion if he somehow changed?

No, no. He shouldn't think about that. If he stays warm it won't be a problem. So he pulls the blanket tighter around himself and sits on the floor in front of the fire.