In a world where you have to pick, do you pick pursuing a close physical relationship, or opt for something far more shallow, but also much more certain and convenient? Or perhaps a deep relationship - with someone you share a lot of interests with, but don't happen to share a continent? Or something else entirely - like solitary entertainment?
In the perfect world of stated preferences, you don't have to trade those things off. In the real world, there's only this much time, money and effort you have available, and choices have to be made.