The first interaction that establishes the "sparks". In a futuristic setting, this could be a shared mission or a chance encounter in a restricted zone.
A handsome stranger (or "bespoke suit" type) who initially poses a challenge or threat but eventually becomes a teammate. Sexy Girl (3011) mp4
A character may struggle to choose between their mission and their heart, or may fear breaking the trust of their closest friend. The first interaction that establishes the "sparks"