He recognised that all the period of Odette's life which had elapsed before she first met him, a period of which he had never sought to form any picture in his mind, was not the featureless abstraction which he could vaguely see, but had consisted of so many definite, dated years, each crowded with concrete incidents. But were he to learn more of them, he feared lest her past, now colourless, fluid and supportable, might assume a tangible, an obscene form, with individual and diabolical features. And he continued to refrain from seeking a conception of it, not any longer now from laziness of mind, but from fear of suffering.
Marcel Proust, Swann's Way
jealousy