To build a believable relationship, consider these foundational pieces:
Perhaps the most enduring archetype in literary history, the enemies-to-lovers storyline relies on a total inversion of energy. Characters begin with intense mutual dislike, usually driven by misunderstandings, opposing goals, or ideological differences. As the narrative progresses, proximity forces them to look past their biases. The thin line between hate and passion blurs, providing a highly satisfying emotional payoff because the love is hard-won. The Friends-to-Lovers Evolution -WWW. SEXINSEX. NET-- -
The romantic storyline fails us because it teaches us that the climax is the confession. The dash through the airport. The speech at the wedding. The kiss in the rain. The thin line between hate and passion blurs,
Conflict is essential to sustain interest, but there is a growing preference for organic conflict rather than "unnecessary drama". Internal vs. External: The speech at the wedding
The tension here stems from the fear of loss. The stakes are rooted in risking an existing, comfortable bond for an uncertain future.