Disclaimer: Not mine.
We're in contact with utter strangers everyday. Not only in contact, but digging through their lives, trying to ascertain who they are, without really getting to know them. Sounds backwards, and maybe it is, but if we don't keep them strangers, we wouldn't be able to survive.
But there's always that case... that case where they suddenly aren't strangers, and you feel as if you know too much, though in reality, you probably know just enough. You feel as if this is the only thing that matters. The here and now. The person who's supposed to be your stranger.
Your stranger.