It doesn't exempt, hence I recommended for her to negotiate with him and work out the best pattern that will work for them. It just takes away the right of the party that insisted on no sex before marriage to make demands and complaints. They can't complain about something that wasn't on their marriage expectation list in the first place.

__________________
My Demon revokes any prayer
He's grown contempt for love and hope
He betrays trust, twists truth and fair
Indifference is his way to cope
Engulfing sound of sensations
He quells with voices of despair
And muse of short lived inspirations
Flees at the sight of his cold stare
~Moy Demon - Mihayeel Lermontov~