你是我此生唯爱你是我今生最爱
[nĭ shì wŏ cĭ shēng wéi ài nĭ shì wŏ jīn shēng zuì ài]
This username means 'You Are My Only Love In This Life; You Are My Dearest Of All'. It expresses undying devotion and the depth of love the user feels for someone, emphasizing that their love is unparalleled and eternal.