承诺都苍白的可笑约定都黯淡的可悲
[chéng nuò dōu cāng bái de kĕ xiào yuē dìng dōu àn dàn de kĕ bēi]
Promises now seem hollow, absurdly laughable while agreed matters have dimmed into something pitiable. It indicates the person views past commitments cynically, finding them meaningless after experiencing disappointment.