我再好也还是不及她他再坏我还是不忘他
[wŏ zài hăo yĕ hái shì bù jí tā tā zài huài wŏ hái shì bù wàng tā]
This suggests a heart-wrenching emotion - no matter how good 'I' become, that person will never be able to replace the one who has been unforgettable despite their flaws; showing a complex and lingering sentiment.