洋葱催人泪只因你剥他心
[yáng cōng cuī rén lèi zhĭ yīn nĭ bō tā xīn]
This username translates to 'Onions bring tears because you're peeling its heart.' It's a poetic and metaphorical way of saying that emotional pain often comes from revealing one's innermost feelings. It could refer to someone who has been emotionally hurt by baring their soul to another.