Everybody knows about arranged marriages in India or Saudi Arabia where fathers decide who gets their daughters. In rural Thailand and in Cambodia, it's the mother, not the daughter, who has to be asked. The amazing thing is that statistics prove that arranged marriages are no less happy, and even more stable, than so-called love marriages as they are entered into by young couples in the West. And so it does. To a certain extent, love is just the psychological result of extreme closeness.
Sexual intercourse is the extreme closeness out of which it results.
As long as Western ideas of a sexually fulfilled live for the female part don't disturb such unions, they are amazingly harmonious though often a bit dull. This is because in a large number of primarily Asian countries from the Arab peninsula to Korea, women traditionally are of the belief that sexual satisfaction is something largely for men. However, in some of these countries, Western influence has provoked a sexual revolution of sorts. And like in the West in the sixties and seventies of the past century, the sexual revolution is first of all a media event. Women's magazines, for example, publish articles about the sexual satisfaction of women, thereby raising expectations.