You hit it on the head there, In my experience most people get into a relationship because their either scared of being 'alone' or they end up in a one night stand that just keeps going. Then there's the financial security option, why do you think divorce costs so much ? If you have stuff all then it's pretty cheap !
I am fully aware that this is the ideal and life rarely works this way but in my opinion you know when you meet a soulmate, wait for that before committing yourself.
Till then just enjoy casual sex ! - and remember to boot them out in the morning ! ( That, by the way is not even vaguely sexist, the system works for all sex's )
To be honest, if the person your with isn't your soulmate, lover and best friend then why are you really with them ?
S14 DRIFT you seriously can't say to anyone they won't get a girlfriend when ive seen you attitude to girls that you don't know and are judging off a picture and calling them sluts... geesh.