倾国倾城不倾他心知天知地不知她心
[qīng guó qīng chéng bù qīng tā xīn zhī tiān zhī dì bù zhī tā xīn]
A complex name that translates to 'The beauty can move the heavens and earth but cannot win his heart'—conveying an idea of unparalleled attractiveness that is nevertheless unable to secure someone's affection. A sense of unreciprocated love.