Characters
How fickle is woman.
— Rhett Butler · Gone with the Wind

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker remarks, in a tone that may be rueful or sour, that women change their minds or affections easily. It is a sweeping generalisation, best read as the speaker's own view of inconstancy rather than fact, and the exclamatory phrasing gives it a theatrical, world-weary flavour.
Context reviewed