涩不及当初聚散不由你我
[sè bù jí dāng chū jù sàn bù yóu nĭ wŏ]
'涩' refers to an awkward or uncomfortable feeling. This net name laments the inevitable partings and reunions one experiences, implying that such occurrences cannot be fully controlled by oneself or the people involved; they're shaped by fate or circumstances.