明天我结婚新娘不是你明天我葬礼陪葬不是你
[míng tiān wŏ jié hūn xīn niáng bù shì nĭ míng tiān wŏ zàng lĭ péi zàng bù shì nĭ]
It depicts a dramatic contrast: on the day of one's own wedding, you (a specific person) will not be the spouse; nor will you be at my funeral as a companion in death. Reflects intense feelings either of giving up unrequited love or expressing bitterness.