Quote from Marshall in Showdown
Robin: Wait, wait, wait, wait, wait, wait, wait. Are you suggesting that when one of you feels something, the other feels it, too? Barney: Oh, God, you guys are so codependent. Lily: No, we're not. Ted: Oh, really? What about the other day? [flashback to Lily & Marshall in the kitchen:] Lily: Oh, I need to get some eggs. Marshall: Oh, I'll come with you. [Marshall walks with Lily up to the refrigerator, then they each return to separate kitchen counters]