Christ said don't divorce and whoever divorces a woman and marries another commits adultery against her.
On the tablets of the Ten Commandments, the hand of God wrote the words "thou shalt not commit adultery."
Now it might be easier for that adulterous couple to move out. But sometimes that's not possible (due to kids), so they have to figure something else out (like separate bedrooms).
-——Christ said don’t divorce and whoever divorces a woman and marries another commits adultery against her.——
You might want to read some commentary outside of the RCC teaching that contextual would shed some light on what the Lord was teaching about....
He was actually pointing out what hypocrites the religious leaders of that time were...not condemning divorced people to a celibate life...