At risk of over-generalizing, I think that's exactly what many single women lack: PERSONAL STRENGTH.  Me included, obviously. Otherwise I wouldn't be in this self-induced, self-help bubble. Lesson learned because, without personal strength,  we tend to pick partners and/or relationships that painfully illustrate just how personally weak we are.  And not to make excuses for us single ladies, but we are struggling against this culturally instilled preoccupation with finding "the one" without any emphasis on finding ourselves first.