我姓张却长不成你爱的模样
[wŏ xìng zhāng què zhăng bù chéng nĭ ài de mó yàng]
This translates into 'My surname is Zhang but I never grew into what you love'. It reflects someone's regret for not being the person another loves despite efforts, expressing self-disparagement or sorrow over the mismatch between identity and another's expectations.