This is arguably the most popular trope in modern fiction. It provides built-in tension and a satisfying "thaw" as characters realize their preconceptions were wrong.
The best romantic storylines use external conflict to force characters to confront their internal conflicts. For example, the zombie apocalypse (external) forces the commitment-phobic hero to admit he loves the heroine because he might lose her (internal). MatureNL.23.08.12.Sissy.Neri.Anal.Sex.With.My.S...
To give you the most helpful review, I’ll need to see the draft or a summary of the specific storylines you're working on. This is arguably the most popular trope in modern fiction