> there is no Shidduch crises Hashem already has every persons zivug
and I am not hungry because Hashem provides food for everyone! There is a lot of fineprint in Sotah – if you miss your original zvug, then you get another one according to your deeds. Even for the pre-ordained, it says so-and-so is for the daughter of so-and-so! So, a boy presumably has a choice of sisters (who may be way different ages) and sisters have a set of potential chatanim to compete for! (unless there are commentaries that explain this Gemora differently)