Ted: Okay, enough. The jig is up.
Barney: Ted, whatever do you mean?
Robin: Who's this guy?
Ted: We'll get to that. You see, I knew something was wrong. You two were too happy, too shiny, too nickname-y. Didn't add up. You two never fight? Horse apples. You fight all the time.
Robin: How would you know that?
Ted: Phil told me.
Barney: Who the hell is Phil?
Ted: Your downstairs neighbor.
Phil: Hi. I'm Phil. 12 B.
Ted: And he's heard everything.