what happened to loving one man?

it seems
that the only person who believes in loving one man is me.
everyone else seems to tear it down
saying i got all my eggs in one basket.
i wonder what happened to loving one man,
to saving your heart for just that special one,
it seems nowadays that
love is an investment
you need to have stocks in different portfolio’s
short term, medium term and long term
so that if there is a shortfall your covered
but what if i dont want to love like that
what if i want to gamble it all
on the big one
that your the one and only one,
that your the only man that i need.