梦里梦她失他心他入她心毁我心
[mèng lĭ mèng tā shī tā xīn tā rù tā xīn huĭ wŏ xīn]
Translating roughly to 'Dreamt of her missing him and him getting into her heart, which destroys my own.' It expresses heartache over love triangles, dreams, and the turmoil within oneself from romantic rivalries.