There are stories of older men (over 40) who used to come into the Steipler with tears pouring down there cheeks. They said ‘how come we are still not married’, surely it says in Talmud Niddah that before a person is born, a bas kol declares ‘bas ploni la ben ploni’ we have a fixed zivug, where is she?
The Steipler answerd then ‘you men refused women who were not attractive, or rich, (external maalos) and internal maalos, as you were so fussy, your zivug has been taken from you and been given to someone else who was less fussy then you.