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Episode Details

The Big Bang Theory Season 3 Episode 20: "The Spaghetti Catalyst"

After Penny and Leonard break up, Sheldon goes behind Leonard's back to hang out with Penny.

The Big Bang Theory Season 3 Episode 20 Quotes

Sometimes your lack of social skills astonishes me.

Sheldon

It was a lot of work to accommodate you in my life. I'd hate to think that effort to be in vain.

Sheldon
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