From a scientific standpoint, I think it has to do with genetics and our attraction to persons who will produce optimal offspring. This would indicate that there are many someones for everyone. From a romantic standpoint, sometimes you meet someone and it truly is like you have known them your entire life and they complete you. Again, this would indicate that there are many someones for everyone. So it begs the question, is it more comforting to know that there is just one someone for everyone or many someones?
I think there is if your not at all picky like pin the tail on the donkey.
If you think you found someone, then let them go. If they come back they're yours and if not then they were never yours to begin with. I don't believe in the "L" word. Undefinable and people tend to put to many mushy and fake descriptives that will put one way off the plateau. Someone once told me that if a woman is good in the Kitchen then she is good in bed. I will always go for a persons soul instead of their physical appearance. Buy an Ugly Woman a House is another I would hear as a successful way to stable relationship. Houses are very important and how one looks on paper are other entrapments for short lived romances.
Probably, if you really want someone. Usually, people who don't have a companion don't really want one, discouraging those who try.
That would be me. Only totally relentlessly optimistic, persistant people have succeeded, which is why I'm worried, since my ex hasn't given up trying to get back with me.