听闻情场复杂持刀稳控情心
[tīng wén qíng chăng fù zá chí dāo wĕn kòng qíng xīn]
The literal meaning could refer to someone knowledgeable about emotional issues ('complex affairs heard in love square'), who handles emotional matters carefully ('holding the knife steadily') and maintains a peaceful mind ('controlling his/her own feelings').