Niles: Looks like she took the news well. Are you insane?
Frasier: Niles, I almost made a terrible mistake.
Niles: What could possibly have happened in the last four minutes to make you change your mind again?
Frasier: Actually, when Cassandra told me that she was seeing somebody else, it awakened something in me.
Niles: Oh, petty jealousy?