The Pardoner interrupts the Wife. He calls her a "noble prechour in this cas" (171).
The Pardoner says he was about to get married. Now he's having second thoughts.
The Wife tells the Pardoner that if he waits a little, he shall drink "of another tonne, / Er that I go, shal savoure wors than ale" (176-177): he will hear something that will make him feel even more wary of marriage.
Once the Wife has told the Pardoner about the woe of marriage, then he can choose whether or not he wishes to engage in it.
The Wife tells the Pardoner he should be wary of approaching too near marriage.
She says she can give more than ten examples to prove this.
Quoting from Ptolemy, the Wife says that men who aren't corrected by others' examples are doomed to be examples for others.
The Pardoner begs the Wife to say more about this, to teach young men of her methods.