And in relationships such as these something is left behind when it's over. It is then that he SEES his own lie. He must suffer through this. The lie has become the truth. He has seen the truth in his lie.
Marriage creates a being where the two become one.
Until the lie becomes the truth. As opposed to the lie was not acknowledged as a lie. This is why marriage is adored by god in that it makes man whole whereas promiscuity satisfys his lusts but tears him apart spiritually. Until the mask is looked upon as the true person by the person wearing the mask. The person discovers things about himself in this situation.