There is a long amiable letter to the young Lafayette in 1779, in which Washington, in a giddy mood, drifts into a reverie about competing for Lafayette's young wife with Lafayette himself--a funny bit of teasing, followed abruptly by a rueful reassurance, worthy of Stendhal himself, that amidst all the wonders recorded in holy writ no instance can be produced where a Woman from real inclination has preferred an old man.
Washington wrote a letter to Lafayette revealing his affections for Lafayette's wife, but ended the letter in jest.
Washington never cared much for Lafayette's wife and would often write letters that exposed his disdain for the woman.