Characters should be complex individuals with lives, goals, and flaws outside of the relationship.

Getting stuck in an elevator or assigned to the same project forces characters to confront feelings they've been avoiding.

The Art of the Heart: Crafting Compelling Girl-Centered Romance

Real love is built on equality, respect, and clear communication. Even if characters fight, they should "fight fair" without resorting to personal insults.

The "I loathe you" energy that slowly morphs into "I’d die for you". The banter and tension are what make this a top favorite.