It is wrong to criticize a partner's friend.
Will recently started sating Wilma, and she introduced him to her annoying friend Wendy at dinner, and Wilma asks Will what he thought of Wendy when they get home.
Will wants to answer Wendy's question.
Will lies and tells Wilma he likes Wendy, but says there's such a thing as too much of a good thing.
Will tells Wilma that he found Wendy kind of annoying and doesn't want to hang out with Wendy in the future.
Wilma agrees with Will's reasoning, and the two rarely see Wendy during their long relationship.
Wilma ends up leaving Will because she doesn't like dating people who don't like her friends.