Patrick: "Anyway, we've been fighting a lot and she's never in the mood for sex anymore. I think she must be having an affair."
Frasier: Now, now, Patrick. Let's not give in to paranoia. Just because your wife is avoiding sex lately it doesn't mean she's being unfaithful. You said yourself you haven't been talking lately. Why don't you try reopening the lines of communication tonight by surprising her with a nice romantic dinner?
Patrick: "Tonight's no good, she's working late on her boss's boat again. But tomorrow's okay, thanks, Dr. Crane."