Babydoll
Blue Crack Addict
I just see that as a form of sadism - who would want to inflict that sort of pain on the wife they supposedly love? Why would they WANT their wife to be in horrendous pain every time they had sex? It's sadism, right, and probably harks back to whole idea that women should be punished. That basic idea at the centre of most chauvinism and that which seemingly has no cause whatsoever.
Marriages for love is a relatively recent concept, much more common here in the west. In the east, marriages are a form of alliance between families and business dealings, etc.