Ah! Icon etiquette is that, if you're unsure whether an icon is takable, it's best to ask, but that any from actual icon journals are fair game. That said, if an icon isn't yours, it's also good etiquette to credit the icon to whoever made it -- so, for instance, you don't have to ask me if you can have the Kate Beaton icon you took from, but you should credit agirlnextdoor for having made it in the first place.

And yeah, seeing Loki's interior life really helps make his actions make a lot more sense. I also think that Thor being on Earth for three days is totally absurd -- there's no way he could have made any lasting positive changes for himself in that time, plus, yeah, I don't think Loki would crack that quickly even if he was feeling sort of abandoned and betrayed. I like the couple-of-months suggestion.