我又高估了我在你心里的位
[wŏ yòu gāo gū le wŏ zài nĭ xīn lĭ de wèi]
Translated as 'I overestimated my position in your heart again', this expresses disappointment and self-reflection on personal value or importance in someone else's life, acknowledging misjudgment of their feelings towards oneself.