In bad romance, both characters want the same thing (to be together) but a plot device stops them. In good romance, they want different things. One wants adventure; one wants stability. The resolution isn't a compromise; it’s a transformation of what they want.
For decades, the romantic storyline ended at the wedding. "Happily Ever After" was a fade-to-black. Today, the most sophisticated narratives ask: What happens after the butterflies die?