Reports say a slang term called "Dujjonku" (두쫀쿠) impacted the couple's relationship.
On March 17, the YouTube channel 'Illine Wedding Diary' uploaded a video titled 'You Did Well to Break Up'.
The video shares a couple who split after conflicts sparked by "Dujjonku," revealing their unfiltered feelings toward each other.
First comment: "I don't understand it, but it's a relief you broke up well."
Second comment: "What even is Dujjonku... Anyway, cheering you on for a new beginning!"