回忆是眼泪的海爱情是悲伤的毒
[huí yì shì yăn lèi de hăi ài qíng shì bēi shāng de dú]
'Memory is an ocean of tears and love is a poison of sadness.' This indicates that recalling past affection can bring endless sorrow and that love has once caused great pain or heartbreak to the owner.