"Are you sure?"
"About the marriage laws in the state where I work at a wedding chapel? Yeah, I'm pretty sure."
Robin: "I never said 'never.' "
Robin: "Do you think he's winning?"
Ted: "I don't even know if he's playing."
And then Marshall says he has the game figured out. Nice allusion to "Game Night." (And speaking of allusions, they don't call Neil Patrick Harris' character by name all episode, do they? And yes trijinx, I read the most recent barneysblog.com)