Enemies to lovers

Enemies to lovers is the romance trope in which the two leads start the book on opposite sides, and the enmity itself becomes the love story. The requirement, as Book Riot's guide states it, is that the characters "start the book as antagonists and actively work against each other". The shape is old: the same guide traces it from Pyramus and Thisbe through Romeo and Juliet and names Pride and Prejudice the trope's seminal text.

Its engine is built-in conflict: two leads who want opposite things generate push-pull without manufactured obstacles, and a companion essay credits the setup with believable obstacles the genre's most-mocked middle, the misunderstanding one honest conversation would dissolve, cannot survive. The delivery mechanism is forced proximity, and the turn arrives when each lead finds the reasons under the other's worst behavior. The variants include rivals to lovers (competitors after the same prize, the commonly mislabeled case of The Hating Game), enmity by circumstance (feuding families, rival employers) and friends to enemies to lovers. Genuine enmity is hard to stage in contemporary romance because the stakes are low, which is one reason the trope thrives in romantasy.

The documented risk is hostility sliding into abuse, a criticism aimed at Sarah J. Maas's work, and the craft line is symmetry: both leads acting, resisting and able to wound. Like all romance it inherits the HEA/HFN ending contract. See the how to write enemies to lovers guide for the full arc.