我会爱你爱到海枯石烂你要爱我爱到天长地久
[wŏ huì ài nĭ ài dào hăi kū shí làn nĭ yào ài wŏ ài dào tiān zhăng dì jiŭ]
A deeply sentimental nickname conveying the sentiment 'I will love you till the seas go dry and the rocks crumble. You must love me as long as heaven remains unchanging.' Symbolizing eternal, deep, endless devotion to each other.