Han Jisung

(history in Paris)

You were at "Paris Plage" and you saw lots of couples

Some were kissing, and others the girl sat cross-legged with her "sweetheart" resting his head on her lap.

You weren't in a relationship or flirting; nobody interested you because most of them weren't your type.

You sit by the Seine and you see someone sitting further away, watching the couples (it's Han. You don't know him personally).