落花有意随流水留守无心伴落花
[luò huā yŏu yì suí liú shuĭ liú shŏu wú xīn bàn luò huā]
Flowers fall intentionally to follow the flow while remaining indifferent amidst falling petals. This phrase symbolizes feelings unreciprocated and longing for love that passes like flowing water without a response.