Why are there so many single women?

FWIW, most of them are single by CHOICE.  Sure, they complain about not being able to hold on to a guy, but again, it's by CHOICE.  THEY ARE TOO CHOOSY and UNWILLING TO COMPROMISE.  Yet, they think THEY ARE PERFECT.  They are looking for Mr. Perfect...who, like Ms. Perfect, doesn't exist.

For the same reason that there are as many single men as single women.

If we don't count homosexual marriage, it is astounding to conclude that HALF of all married people are women!