Two and a Half Men Season 6, Episode 17, titled "The 'Ocu' or the 'Pado'?", follows Charlie's desperate attempt to force a reciprocal "I love you" from Chelsea by proposing. The 2009 episode, which features the ring being swallowed, serves as a major turning point in their relationship. Stream this episode with a subscription on Peacock . The 'Ocu' or the 'Pado'? - IMDb