有一种距离叫寸步不离有一种距离叫遥不可及
[yŏu yī zhŏng jù lí jiào cùn bù bù lí yŏu yī zhŏng jù lí jiào yáo bù kĕ jí]
It means 'there's a kind of distance that is always near but also feels far'. It conveys the feeling of being physically close yet emotionally distant from someone, or vice versa.