Season 4, Episode 6: Is it a Hamster or a Rat‪?‬ How I Met Your Friends

Ted deals with the fallout of Stella leaving their wedding by stuffing his feelings down, Ohio-style. Marshall and Lily advocate for berserker Ted because that's what New Yorkers do. 

Ross dates the most beautiful woman in the world with the most disgusting apartment not featured on Hoarders. Monica tries her hand at catering. Chandler pushes the boundaries of his feelings for Kathy.