余生有我梦里有他
[yú shēng yŏu wŏ mèng lĭ yŏu tā]
'Yu sheng' means the rest of life, 'You wo' stands for having me, 'Meng li you ta' translates to dream of him. Thus, this nickname conveys that the speaker hopes they spend their remaining life with one person and they will always exist in each other's dreams. That means no matter in reality or dreams, we will still think about and accompany each other.