烟花再美不过瞬间情话再甜不过敷衍
[yān huā zài mĕi bù guò shùn jiān qíng huà zài tián bù guò fū yăn]
Translates as 'Even the most beautiful fireworks only last a moment; sweetest love words mean insincerity'. It expresses cynicism about the fleetingness of pleasure and superficial romanticism. The user may feel jaded towards promises or moments perceived valuable yet prove ephemeral.