我一生守护的爱人我放心深处是路人
[wŏ yī shēng shŏu hù de ài rén wŏ fàng xīn shēn chŭ shì lù rén]
'The love of my life whom I protect deeply inside has turned into a stranger.' Reveals deep emotional wounds caused by unrequited love. Even though they were once important, they have become distant as if a passerby.