Trivia: A bit too unlikely to be just a coincidence, but I can't work out the significance. The doctor who delivers Phoebe's triplets (the one who loves Fonzie) played the evil head of Wolfram and Hart in "Angel". The doctor who delivers Erica's twins in this episode also plays the evil head of Wolfram and Hart in "Angel" (after the death of the first guy).
The One Where Joey Speaks French - S10-E13
Trivia: Just a thought: Every time Rachel hears someone talking French, she instantly becomes aroused (even when a woman does it). A few episodes later, she decides to move to Paris. Boy, that would be a hard time for her...
The One Where The Stripper Cries - S10-E11
Trivia: When Ross Geller and Chandler Bing are at the reunion, Ross says she dumped him for Michael Skloff, who made the theme tune and additional music.
Trivia: In the scene where Monica and Chandler hold their twins for the first time, a nurse can be heard paging "Dr. Matthew Perry" and "Dr. Green" on the intercom.
Answer: The statements that she's contradicting (that it is common, it happens to every guy, and it's not a big deal), are the things that a woman commonly says to a man who is suffering from erectile difficulty, typically to assuage his bruised ego. However, most men do not believe that these statements are true, as evidenced by Chandler's outburst. He's so caught up in the proof that women are lying about it that he gives himself away.
Rooster of Doom