I heard a story about a boy who went out with a girl and told his Rosh Yeshiva that he didn’t want to go out again because she wasn’t pretty. His Rosh Yeshiva told him that he’s a “kofer” because Chazal say that all bnos Yisrael are pretty.
Chazal also tell us that it is forbidden for a man to marry a
woman before seeing her, “??? ???? ?? ??? ????? ?????? ????.”