天长我爱你地久我想你
[tiān zhăng wŏ ài nĭ dì jiŭ wŏ xiăng nĭ]
'I have loved you since time immemorial and miss you as if I haven't seen you for an age,' echoing classic Chinese phrases to express unending or profound affection and yearning. Such nicknames convey intense, timeless emotional attachment towards someone beloved, emphasizing longevity and depth of emotions.