解不开的心结忘不了的爱
[jiĕ bù kāi de xīn jié wàng bù le de ài]
An untieable heart-knot of unforgettable love. Refers to lingering feelings or unresolved passion which remain deeply entrenched despite attempts to sever emotional connections—often associated with bittersweet remembrances of unfulfilled or lost loves.