那些弥散在风中的信誓旦旦
[nèi xiē mí sàn zài fēng zhōng de xìn shì dàn dàn]
This nickname conveys how promises (often passionate vows or commitments) easily disappear as quickly as they came, much like things scattered by the wind. It evokes a sense of impermanence and perhaps the fading nature of certain emotions over time.