Niles: Well, if it makes any difference, I've decided to tell Donny everything about Daphne.
Frasier: Really?
Niles: Yes. Then he can proceed however he sees fit.
Frasier: But, why, Niles?
Niles: Well, I started to wonder, maybe my feelings for Daphne did affect my marriage. Maybe on some intuitive level Maris knew all along. I can't be certain that that's not what drove her to Schenkman.
Frasier: Listen to me. The only reason that marriage lasted as long as it did was because of the effort that you put into it. From the moment that you slipped that ring onto her bony little finger and it slipped right off again!