to let go of you, to release you
¿No comprendes que no quiero soltarte?
Don't you understand that I don't want to let you go?
— Ladrón de bicicletas (1948)
Si hubiera sabido lo difícil que era soltarte la mano, nunca la habría tocado.
If I had known how hard it would be to let go of your hand, I never would have held it.