“Dramatists have always made fun of the friendship between a husband and his wife's lover. But is it so comic? These two men undoubtedly have more to say to one another than the lover and his mistress. They get on perfectly well, and it is often the husband's presence that makes endurable the intolerable boredom of certain affairs of this sort. Cases have been known where a break occurred almost immediately following the husband's withdrawal from the scene.”
Un Art de Vivre (The Art of Living) (1939), The Art of Friendship
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André Maurois 202
French writer 1885–1967Related quotes

“The actors are, it seems, the usual three:
Husband and wife and lover.”
St. 25.
Modern Love http://www.ev90481.dial.pipex.com/Meredith/modern_love.htm (1862)

“It is better to have a prosaic husband and to take a romantic lover.”
Fragments, sec. 10
De L'Amour (On Love) (1822)

“477. A poore beauty finds more lovers than husbands.”
Jacula Prudentum (1651)

Everyone Loved Irene, by William Frye http://www.irenedunnesite.com/press/vanity-fair-march-2004/ Vanity Fair, 2004]

“The brightest attractions to the lover too often prove the husband's greatest torments”
Source: The Tenant of Wildfell Hall (1848), Ch. XVI : The Warning of Experience; Mr. Boarham to Helen

Entre le joueur du matin et le joueur du soir il existe la différence qui distingue le mari nonchalant de l'amant pâmé sous les fenêtres de sa belle.
The Wild Ass’s Skin (1831), Part I: The Talisman

“The lover in the husband may be lost.”
Source: Advice to a Lady (1731), Line 112.