久居深巷守一段旧时光久溺深海等一位旧熟人
[jiŭ jū shēn xiàng shŏu yī duàn jiù shí guāng jiŭ nì shēn hăi dĕng yī wèi jiù shú rén]
'Living in a deep alley to cherish past times and staying in deep waters waiting for an old acquaintance' conveys someone who is nostalgic and holding onto the past, especially cherishing past relationships while waiting for a meaningful reunion with someone important from their history.