A number of years ago I was near Rabbi Noach Weinberg at a Shabbos dinner. A girl approached him and asked how a person would know if someone is their basheert.
Rabbi Weinberg told her that Leah Imeinu’s basheert was Esav and that she davened very hard not to get her basheert!
He also told her not to worry about it and to look for a frum boy who knows what marriage is all about.