菇凉你命里缺我少年你五行缺我
[gū liáng nĭ mìng lĭ quē wŏ shăo nián nĭ wŭ xíng quē wŏ]
A humorous play suggesting indispensability. 'Girl, you're destined to miss me; boy, your life feels incomplete without me'. The username plays on traditional Chinese beliefs in destiny and the elements, but it has a lighthearted, teasing tone.