落花有意随流水流水无情恋落花
[luò huā yŏu yì suí liú shuĭ liú shuĭ wú qíng liàn luò huā]
'Falling Flowers Willingly Follow the Water Stream, Indifferently In Love With Them' alludes to a metaphorical situation where one party (the falling flower) is willing, but the other (water stream) remains indifferent. This phrase often refers to unrequited love or affection.