the right person?

i read this sentence somewhere
and though that
ahh it supposed to be that way

"marriage is not supposed something
that to find the right person to marry
it is about to make it right
for your other half
after the marriage"

from what i understand is
the person that complete the missing you
the ideal type that you want
if he/she doesnt complete you
then what is the purpose your marriage is?

deathnote ; finding your ideal type is easier than the right person for you.. hmm sometimes he/she is standing beside you.. but you ignore or didnt notice it.. ^^