I've got three souls- one on each foot and my are.

I think everybody will accept that "soul" here is metaphorical. We are all looking for happiness- some believe that happiness will not be achieved in this life, and become saints or sour. Others try, give up, and divert their energies into forgetting their failure- and sometimes do great things because of that.

Our society is conventionally monogamous, so people hope that their one partner will supply all the makings of their happiness, and some even try to give happiness back in return. But I think that, unless your "soul" is peculiarly uncomplex, one person is unlikely to do that. Hence the dissatisfaction that many people feel when their relationship, despite many years of adjustment, fails to fulfill them.

The answer, as I said, is to recognise the complexity, and act accordingly. But do it honestly, or all you'll get is divorce or worse and the whole family unhappy instead of just you.