不懂我心你怎知我情深
[bù dŏng wŏ xīn nĭ zĕn zhī wŏ qíng shēn]
'If you don't understand my heart, how can you know the depth of my affection?' reflects a feeling of misunderstanding or miscommunication. It expresses a deep need for empathy and understanding, highlighting the desire for someone to truly know and appreciate the speaker's emotions.