念念不忘恋恋不舍
[niàn niàn bù wàng liàn liàn bù shè]
'念念不忘恋恋不舍' conveys a deep sense of yearning and unwillingness to let go. It implies someone always remembers you deeply and misses everything between the past and you. This expression is often used in romantic situations as well as to describe lasting friendships.