Sheldon knocks on a hallway door with Amy on "The Relationship Diremption."
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Penny, Leonard and Amy toast Sheldon on "The Relationship Diremption."
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Bernadette and Howard go on a double date with Raj and Emily.
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Barry Kripke shows up to talk to the guys during lunch.
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Sheldon leads a discussion with Leonard, Raj and Howard during lunch.
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Raj has dinner with a date named Emily. Will he pick her?
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Raj has coffee with a new woman, Emily. He looks quite smitten.
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Raj goes out on a date with a new woman, Emily, played by Laura Spencer.
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TBBT Quotes

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.