The Fortress

"The Fortress" is the 19th episode of the eighth season of the CBS sitcom How I Met Your Mother, and the 179th episode overall. Plot Robin asks Barney where they should live after the wedding. Barney said they are going to live in his apartment, but Robin refuses because he has bedded countless women there. Barney agrees to find a new place, but also wants the apartment to go to someone who will appreciate it. When Ted rejects Barney's offer, Barney tells Robin that he could not find anyone to take the apartment. Robin arranges for an open house and Barney explains the features while recounting his sexual escapades. Robin accuses him of trying to scare off potential buyers, which he denies. Despite his efforts a couple declares that they want the apartment. Marshall is growing frustrated that Lily's new job as the Captain's art consultant is stopping them from spending time with each other and Marvin. Ted convinces Marshall to break his promise not to watch Woodworthy Manor, a British drama (a parody of Downton Abbey), without Lily. When Lily arrives late to Robin's open house, she finds that Marshall and Ted are posing as a gay British couple with Marvin as their child to help encourage potential buyers. While maintaining his gay persona, people mistake his argument with Lily as her scolding him for being a gay man. The ruse falls apart when Ted is caught making out with a woman.