和心爱的人做蓝颜有多痛
[hé xīn ài de rén zuò lán yán yŏu duō tòng]
'How Painful it is to be a 'Blue-Face' Friend to the One I Love.' 'Blue-Face' translates to having strong feelings for a friend but unrequited in romantic terms; this expresses frustration and pain in maintaining a strictly friendly relation with the loved one.