你的承诺在我眼前失效了
[nĭ de chéng nuò zài wŏ yăn qián shī xiào le]
This online name, 'Your promise becomes invalid before my eyes,' conveys the sentiment of watching a promise being broken in one's sight, implying feelings of disappointment and betrayal. It reflects a personal experience of witnessing unfulfilled assurances or expectations.