我怀念你忘却的我忘却你怀念的
[wŏ huái niàn nĭ wàng què de wŏ wàng què nĭ huái niàn de]
Expresses the pain and complexity of lost and forgotten loves, where one misses someone even as that person has forgotten them, or where they are missing those who have been out of their life, reflecting bittersweet nostalgia.