Walden's loneliness at Valentine's Day leads him to ask Kate for a second chance on Two and a Half Men. "Advantage: Fat, Flying Baby" is the 16th episode of the show's tenth season.
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Two and a Half Men Season 10 Episode 16 Quotes

Walden: Why do you need a chiropractor?
Berta: I have a big date on Valentine's Day, and if it goes all well, I will need a chiropractor, a psychiatrist and a priest.

Lynsdey: How are you doing?
Alan: I am high, humiliated and hairless.