In relation to a writer, most readers believe in the Double Standard: they may be unfaithful to him as often as they like, but he must never, never be unfaithful to them. W. H. Auden
Never be unfaithful to a lover, except with your wife. P. J. O'Rourke
Women sometimes allow you to be unfaithful to their love; they never allow you to wound their self-esteem. Alexandre Dumas, fils
The woman who deceives her husband makes her lover swear never to be unfaithful to her. Chinese Proverb