从手冷到脚冷再到心冷
[cóng shŏu lĕng dào jiăo lĕng zài dào xīn lĕng]
Means 'from cold hands to cold feet, then a cold heart'. It describes the progression of feeling distant or indifferent, usually in emotions, implying a process of losing warmth or passion in feelings eventually leading to emotional numbness.