¿Por qué el tiempo se detiene para mi ?, pero siempre se mueve para ti.

with questions marks!

Without qustion marks? If there is no question mark I would translate it like this "El porqué de que el tiempo se detenga para mí, pero siempre se mueva para tí" Have a good day!

The English translation is: "Why does time stand still for me, but it always moves for you"

maybe it would be helpful to give the English version to ask for an accurate translation..