梦城我与她旧城她与他
[mèng chéng wŏ yŭ tā jiù chéng tā yŭ tā]
'梦城我与她旧城她与他' means ‘In dream city I was with her; in old city she was with him’. It suggests reminiscing past relationships where you were involved in a love triangle or had lost love to another person. It evokes themes of longing and nostalgia for unreciprocated feelings or past heartbreak.