[discussing Casablanca's Rick and Ilsa]

He wants her to leave. That's why he puts her on the plane.

I don't think she wants to stay.

Of course she wants to stay. Wouldn't you rather be with Humphrey Bogart than the other guy?

I don't want to spend the rest of my life in Casablanca married to a man who runs a bar. That probably sounds very snobbish to you, but I don't.

You'd rather be in a passionless marriage -

- and be the First Lady of Czechoslovakia -

- than live with the man... you've had the greatest sex of your life with, just because he owns a bar and that is all he does.

Yes, and so would any woman in her right mind. Women are very practical. Even Ingrid Bergman, which is why she gets on the plane at the end of the movie.