我如此想你却不留痕迹我如此情深却与你无关
[wŏ rú cĭ xiăng nĭ què bù liú hén jī wŏ rú cĭ qíng shēn què yŭ nĭ wú guān]
This means 'I miss you so much but without leaving a trace; My feeling is so deep but has nothing to do with you.' Expressing that despite deep feelings and thoughts, these sentiments are unrequited.