From an emotional standpoint, romantic movies can have several different functions. On the happier end of the spectrum, they can produce feelings of joy, hope, and gratification. Then there are romances that are best described as tearjerkers, with endings that devastate more than delight. But there are also films that fall somewhere in between these two extremes, movies that feel both melancholic and joyful at the same time.
Source: The Best Romance Movies Where The Couple Doesn’t End Up Together