Penny tries to figure out her feelings for Leonard with the help of Bernadette and Amy. Sheldon tries to get Penny to stay in the relationship. Stuart becomes Raj’s new hang-out buddy to fill the gap left by Howard, and gets accepted into the social group by Sheldon. Meanwhile, Howard gets bullied by his fellow astronauts.

Episode name: The Decoupling Fluctuation

Air Date: October 4, 2012

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