Father Reese does not know to distinguish a metaphor from reality. What Jesus said about marriage is not a figure or a metapher,  like in the other Jesus word's  he quotes. On marriage and divorce, Jesus alluded to the beginning in response to the jews: "Moses permitted you to divorce your wives because your hearts were hard. But it was not this way from the beginning" [...] “Haven’t you read,” he replied, “that at the beginning the Creator ‘made them male and female,’ and said, ‘For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh ? So they are no longer two, but one flesh. Therefore what God has joined together, let no one separate.”
The Lord is very clear about marriage and divorce.  
Marriage is a divine institution that shows in a visible way  how God's love to every soul is: unconditional and for ever. Even if we are unfaithful, He remains faithful. He never "divorces" a soul, even if he or she are unfaithful.