[Loki listened again, pondering for a moment. Many thoughts running through his head. Not all of them positive either, though he had no desire to make the Doctor more upset.]

Did they make the choice to be your friend? Did they know the risks? If they chose to be your friend, then there's only so much you can do.

[Letting that sink in, and studying the other man for a moment.]

That's also the problem with you hero types. The sacrifices asked for can be too much for many to pay.

[A little bit more melancholy there, in Loki's own tone. But it was not unkind. Or at least, not meant to be.]