深知你心里没我的位置
[shēn zhī nĭ xīn lĭ méi wŏ de wèi zhì]
'Fully Aware There's No Place for Me in Your Heart.' Expresses knowing well about the emotional distance maintained by someone (likely a person they have romantic feelings toward). Despite all efforts made, the realization of not being cherished or considered leads them to feel marginalized and unimportant.