冷言冷语冷温柔
[lĕng yán lĕng yŭ lĕng wēn róu]
This nickname implies a complex emotional state. It suggests that the person may use cold words ('冷言冷语' means speaking in an icy, unfriendly way), but they might still possess or pretend to have warmth of feelings (as indicated by '冷温柔', where '温柔' means gentle and warm) deep inside.