"The Flaming Spittoon Acquisition" is the tenth episode of the fifth season of The Big Bang Theory that first aired on CBS on November 17, 2011.
Stuart is attracted to her and proceeds to ask Leonard about the current state of Sheldon and Amy's relationship.
Sheldon says the question is moot, assuming that a renowned neurobiologist like Amy would never be interested in a guy like Stuart anyway.
When Leonard and Sheldon return to the comic book store, they meet Dale, who has replaced Stuart while the latter is out having coffee with a girl.
Meanwhile, the guys find out that a new expansion pack for Mystic Warlords of Ka'a called "Wild West and Witches" has come out, which they initially turn down because of its theme and the price, but eventually buy after an argument about who would win in a fight between Billy the Kid and the Wizard of the North.