口头爱人心头情人
[kŏu tóu ài rén xīn tóu qíng rén]
A more poetic way of expressing complex feelings toward someone important. 'Koutou Airen Xintou Qingren' directly translates to 'you are my mouth-talking love but heart-stirring paramour' indicating a person close yet not in an official relationship. The user might express the bittersweet nuances of having a loved person whose connection extends beyond mere labels.