The great thing about being single is that it affords a self-sustaining lifestyle. You don't have to be with anyone, and actually you're better off alone than with the wrong person. You can go your entire life without a significant other and be just fine. (I suppose 200 years ago this was often not the case for women, but it is now.)
Unfortunately, you can't exactly just be unemployed until the right job comes along, and shrug if it never does. That doesn't work too well.