familiarity breeds contempt

The more acquainted one becomes with a person, the more one knows about his or her shortcomings and, hence, the easier it is to dislike that person.1894, H. Rider Haggard, The People Of The Mist, ch. 25:This was the beginning of evil, for if no man is a hero to his valet de chambre, much less can he remain a god for long in the eyes of a curious woman. Here, as in other matters, familiarity breeds contempt.