烟花未冷心已凉天空未雨身已淋
[yān huā wèi lĕng xīn yĭ liáng tiān kōng wèi yŭ shēn yĭ lín]
'The fireworks have not yet cooled, but my heart has already turned cold; there's no rain in the sky, yet I've already gotten wet.' Expressing a deep sorrow where exterior elements like firework displays don't bring warmth when facing inner emotional pain, like feeling hurt despite an outwardly happy occasion.