Howard shows Leonard a drawing of ... something. What is that supposed to be?
Added:
Barry Kripke annoys Sheldon and Howard during their lunch break.
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Howard arrive for his double date with his wife, Raj and Emily.
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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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The Big Bang Theory Season 7 Quotes

Sheldon: Amy, mourning the inevitable is a complete waste of time.
Amy: And watching a bunch of goody space movies you've seen hundreds of times isn't?
Sheldon: If we were in a physical relationship, you just lost sex tonight.

Penny, there's only one cookie with something in the middle that solves life's problems, and that's an Oreo. Or a Nutter Butter, if you're in a pinch.

Sheldon