答案解析：
B
A 正确，Rachel 之前和 Paolo 在谈恋爱，但是现在已经对他绝望了。而 Phoebe 之前并没有和Paolo有任何关系，不过 Paolo hit on her。因此 C D 正确。选出不正确的选项是B。

听力原文：

Rachel: No...oh, I feel so stupid! Oh, I think about the other day with you guys and I was all Oh, Paolo, he's so great, he makes me feel so..." Oh, God, I'm so embarrassed!
Phoebe: I'm so embarrassed, I'm the one he hit on!
(Phoebe's and Rachel's lines overlap)
Rachel: Pheebs, if I had never met him this never would have happened!
Rachel and Phoebe: I'm so sorry! No I'm sorry! No I'm sorry! No I'm sorry!
Phoebe: No, wait, oh, what are we sorry about?
Rachel: I don't know...right, he's the pig!
Phoebe: Such a pig!
Rachel: Oh, God, he's such a pig,
Phoebe: Oh he's like a...
Rachel: He's like a big disgusting...
Phoebe: ...like a...
Rachel: ...pig...pig man!
Phoebe: Yes, good! Ok...

听力笔记：

Hit on 偶然发现；忽然想到