千山万水念念不忘千山万水不离不弃
[qiān shān wàn shuĭ niàn niàn bù wàng qiān shān wàn shuĭ bù lí bù qì]
'Across mountains and rivers, never forgetting and never leaving'. This reflects a profound and unwavering devotion. Despite great distances, the user remains loyal and remembers the object of affection.