Nailed it. “You good” is New Yorker for, “Hey, I know how you feel, and I want you to know that humanity still exists, and as bad as it feels right now, I promise it’s temporary. And I’m happy to help (within limits) even though we’ve never met before, because you’re a human being you are deserving human kindness and care.

Also, if you’re weird, I’m gonna tell you to fuck.”