你心里还有谁我心里只有你
[nĭ xīn lĭ hái yŏu shéi wŏ xīn lĭ zhĭ yŏu nĭ]
'Who Else Is In Your Heart While I Have No One But You' expresses the depth and exclusivity of feelings for someone else. There's a sense that despite not having others in the user’s heart, doubts arise about the feelings or commitment from the recipient's end.