不悲不喜有你无忧无虑有我
[bù bēi bù xĭ yŏu nĭ wú yōu wú lǜ yŏu wŏ]
This suggests a carefree state of mind, implying that when you're with the person one loves ('you'), they feel neither sadness nor joy because of contentment. The phrase implies tranquility and peace.