While the single heart (❤️) symbolizes a firm, deep love, 💕 expresses the love within a 'relationship' where two hearts connect and flutter. It's more suitable for showing mutual affection or excitement rather than one-sided feelings.

It's not just for romantic partners; it's also frequently used to express friendship or affection between close friends. In K-pop fan culture, it's popular for representing the chemistry and bond between a fan and an idol, or between two members of a group, thanks to its visual feature of showing a connection between two entities.