that probably won't answer or please anyone
that the brain in it's power it's chemical balance has
a mechanism to compel us to love whether we do
or not.
we often go wrong.
It has tiny endorphins and synapses firing  
to ensure the genetic material within the
balance of humanity is shared, therefore all
of us prosper with the increase in variability.
And blue eyes or green fair haired short or tall thin or chunky
all of us find or urge ourselves to believe
the ONE is our only match.