Niles: Well, I guess I'll say my goodbyes as well. Goodnight, Frasier. [ignores Lilith]
Frasier: Oh, this is ridiculous. Listen, Lilith, uh, Niles is upset because you snickered at Maris's wedding vows.
Lilith: I simply responded with the genuine spontaneous emotion I was feeling at the moment. [Frasier signals for more] But, if Niles is not mature enough to accept that, if he is so pitifully insecure, if he is in such need of validation, then I guess for some sense of familial harmony, I do apologize.
Niles: Oh, Lilith, thank you! [hugs her tight] Oh, this bad blood between us has gone on far too long. Next time you're in town, we'll have dinner, just you and me.