Dowistrepla: Lily sing-songs to Marshall that dinner is ready. Marshall stammers. "Did you -- did you make any for me?" Lily sing-songs, "No. But it's your favorite." Just then, the doorbell rings. It's Barney and Robin. They confess their relationship angst by way of asking for Lily and Marshall's advice. We learn their fights have included Robin throwing plates full of food at Barney, and Barney handing Robin a knife, ripping open his shirt, and begging her to stab him. Saget!Ted narrates: "And by the end, Lily and Marshall both had the same reaction." Marshall promises to wash his dishes as soon as he's finished eating. Lily replies, "I don't care when you wash the dishes." A beat... "But if it's something cheese based -- like a nice ziti -- at least soak it, okay?" Marshall says, "Of course, baby," and they kiss and profess their love. Robin demands to know how they did that -- how they moved from anger to love. Marshall says that sometimes, you have to set aside your ego. Lily agrees, "And remember that the love you have for that other person is way more important than winning." Barney and Robin look at each other and... crack up. Robin asks, "Seriously. What's the secret?" Lily says that once the honeymoon period is over, they can get to the 'real stuff'. "And honestly, it's the best part." In the Dowistrepla hallway, Barney and Robin mull over their friends' advice. They seem to take it in for a moment, but then Barney says, "OR, there's a bench in the elevator..." Robin's all over that. "Okay, so what if we're not the best couple in the world." Barney tries to convince himself. "Totally. It's not a competition." Back inside Dowistrepla, Lily and Marshall yell, "We win!" Marshall pops a bottle of champagne and declares he and Lily are, "The best couple in the world," as Lily claps and lets out a "Woooo." Commercial.