我不想你走可我拦不住你
[wŏ bù xiăng nĭ zŏu kĕ wŏ lán bù zhù nĭ]
Expresses internal conflict; despite wanting the other party to stay (could be metaphorical or literal), the individual acknowledges they lack the means to keep them around. Can also mean acceptance of circumstances beyond control but hoping things were different.