落花有意随流水流水无心伴落花
[luò huā yŏu yì suí liú shuĭ liú shuĭ wú xīn bàn luò huā]
Literally meaning 'fallen flowers intend to float on the water, but the water has no intention of keeping them company.' A poetic sentiment reflecting unrequited affection or transient encounters. It can mean a scenario where one party's feelings do not align with another’s.