That's a refreshingly nuanced take on it.

[And he means that. He comes from a world where everything is shades of grey, too.]

If your sister Arya turns up, I'll do you the favor of keeping the story consistent.

[He owes her that much, for hugging him like this. The silver is subsiding, its strangeness ebbing away into his still odd more less alarming appearance.]

I didn't have siblings. I don't know what it's like... it's a deep sort of platonic love, right?