Give your characters a unique way of speaking. Do they tease each other? Do they finish each other's sentences? Dialogue is 70% of the romance.

One character sees the other at their absolute worst. 3. Popular Tropes (The "Vibe")

We Need to Tell a Different Kind of Love Story - Electric Literature

The protagonist proves their love by changing their behavior or making a sacrifice.

Before diving into specific tropes, it is worth asking: Why English? The dominance of English-language media (Hollywood, BBC, and the modern publishing industry) means that the archetypes of English relationships—the "meet-cute," the "will-they-won't-they," the "grand gesture"—have become global shorthand for romance.