薄情薄义菇凉无情无义冷血冷心姑娘无血无心
[bó qíng bó yì gū liáng wú qíng wú yì lĕng xuè lĕng xīn gū niáng wú xuè wú xīn]
Says 'A cold-hearted girl has no feelings nor righteousness'. This might imply an emotionless state or unemotional nature or simply the user does not like people to bother them with emotions or ethics too much - they tend to prefer independence.