我姓郑却挣不到你的心
[wŏ xìng zhèng què zhēng bù dào nĭ de xīn]
'Zheng' in Chinese refers to a surname here. This username laments that despite bearing the same surname (which traditionally suggests kinship or affinity), the user has not been able to win the other person's heart, conveying a feeling of sadness or longing.