Why do we crave love so much, even to the point that we would die for it? Learn more about our very real, very physical need for romantic love, and people who have been dumped. On the one hand, a relationship must satisfy our deep-seated need for security, dependability and permanence while at the same time meeting our equally strong need for adventure, mystery and the unexpected. It’s a paradox so many couples feel: that great intimacy does not necessarily make for great sex.