Continuity mistake: While the girls walk down the street at night Miranda says "relationships are not about games" and the road behind is empty. A shot later in the close-up it's jammed with cars.
Twenty-something girls vs. thirty-something women - S2-E17
Continuity mistake: Carrie and the doctor are dating for the day after and a waiter approaches on the left. A shot later he disappears.
Twenty-something girls vs. thirty-something women - S2-E17
Continuity mistake: When Carrie meets the doctor there's a couch right behind them, plus a table next to him and another couch behind Carrie. A shot later they're surrounded by people despite the place being packed with stuff a second ago.
Twenty-something girls vs. thirty-something women - S2-E17
Continuity mistake: When Carrie meets the doctor there's a waiter behind them who walks away towards Carrie's direction but suddenly disappears in the following shot.
Twenty-something girls vs. thirty-something women - S2-E17
Continuity mistake: At the beach party, a fan meets Carrie who holds her beer with both hands or one depending on the angle.
Twenty-something girls vs. thirty-something women - S2-E17
Continuity mistake: When Samantha meets the doctor at the beach her legs are crossed or not depending on the angle.
Answer: I'm a long-time fan of the show, having re-watched it many times, and I definitely remember slightly different dialogue at the end of that episode than what's on my DVD. I'm afraid I have no idea why this change might have been made or any other info, but you're not insane.
Purple_Girl