他不是我怎知我心
[tā bù shì wŏ zĕn zhī wŏ xīn]
'He isn’t me, how would he know my heart?' This username expresses the isolation felt in being misunderstood. Even if loved ones think they know us well, this statement questions the extent of such understanding, suggesting that one can't truly be known or understood by others due to unique individual experiences.