Houdini & Doyle (2016)

S5E21 Twin Beds

Title: Twin Beds Plot: Ted and Barney inadvertently complicate Robin's budding romance by declaring their feelings for her, leading Robin to the realization that she has truly moved on from them. In a separate storyline, following a weekend of sleeping in twin beds, Marshall and Lily come to the conclusion that they should buy twin beds for their home.