明知相思苦偏又苦相思
[míng zhī xiāng sī kŭ piān yòu kŭ xiāng sī]
'明知相思苦,偏又苦相思' is a phrase meaning 'Although knowing loving distance creates pain and suffering; I keep torturing myself by yearning.' This highlights emotional torment endured due to unrequited love despite fully understanding the consequences beforehand.