It all depends on the couple. If their relationship and love they have for each other is more important than sex. Some couples have probably been together for year's and be content with a sexless relationship.
But at the same time there will be couples who enjoy the sex with their other half more than the company lol and say no let's have a breaka think we should see other people. But it swings both ways but the majority of people think it's the guy who would be like no fk that i need sex but women can be just as much into sex than guy's. Unfortunately i haven't met her yet