忘不了的故人放不下的往事
[wàng bù le de gù rén fàng bù xià de wăng shì]
'忘不了的故人放不下的往事' translates to 'unforgettable old acquaintance and unforgettable past events'. This username indicates that the user still misses their old friend and is unable to forget the shared history, implying that one is still entangled by past emotions or memories.