Did it ever occur to you that Kay is being nice to you because she loves you?
6 seconds sound clip from the Mister Ed - Season 1, Ep. 5 - Stable For Three TV Series.
You can hear this line at 00:06:02 in the DVD version of the movie.
Quote context
[...]
- Just because a wife is nice to her husband doesn't mean she wants anything.
- How long have you been married?
- Did it ever occur to you that Kay is being nice to you because she loves you?
- Why did you destroy our neighbor's barbecue?
- Well, what have you got to say for yourself?
[...]