Why it worked
The video uses a relatable scenario of having lingering feelings for someone, which resonates with a wide audience. The quick shift from 'over them' to 'seeing them in person' creates a humorous and unexpected twist that is highly shareable.
Summary
The video shows a person who is seemingly over someone, indicated by text on screen. However, upon seeing the person in person, their feelings resurface, as suggested by the change in on-screen text and their reaction.