Stunned

Out of nowhere this afternoon, while I was standing outside during a Friday morale event dealy:

Marc's girlfriend: So, you going to be there tonight?
Me: Tonight? What's tonight?
Marc's girlfriend: A bunch of us are going to a Mariners game.
Me: I heard nothing of it.
Marc's girlfriend: Oh, I thought you and Marc were best buddies. I guess you're really just his secret friend that he plays silly video games with and refuses to talk about. Okay, have a good weekend! (walks off)

I was somewhat stunned by that.