Oh, also, completely unrelated (kind of related I guess) on this Love at First Sight type of trope... a few years ago I read a fanfiction of a spy receiving orders from someone who is in control the behind the scenes (that person guided the spy through a Bluetooth head piece)... the spy and the person at control command fell in love since they just spoke with each other all the time, but because of the demands of their job, they couldn't reveal their personal details... they just knew each other by their cadet numbers...
On the last day of the spy's job, the spy asks the commander whether she wants to meet up with him, and the commander agrees. They see each other for the first time in real life and fall in love at first sight 😂 Or at least that's how they joke about it... guess after reading that story, I believed in love at first sight