What stands out about PDA, is that it is almost an entire episode of great one-liners. None of the one-liners are out of context or character, and they are all driven by two points, the first of which is Valentine's Day.
Since Andy made his debut on The Office, he had always taken the role of a character with an odd side to him. But with Jim and Pam not awake enough to pay much attention, and Andy remembering quite well what it was like to be cheated on in a relationship, Andy ended up being the voice of reason in this episode.
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