change one's mind
Pides permiso para matar y luego cambias de idea.
You ask for permission to kill and then you change your mind.
— Carandiru (2003)
Iba a ir a Boston la próxima semana pero he cambiado de idea.
I was going to go to Boston next week, but I've changed my mind.
Cuando cambies de idea abre la ventana.
When you change your mind, open the window.
— Cinema Paradiso (1988)
Si el sol saliera por el oeste, no cambiaría de idea.
If the sun rose in the west, I wouldn’t change my mind.
En ese caso, cambiaré de idea.
In that case, I’ll change my mind.
Ni un solo pensamiento, ni una chispa de idea.
Not a single thought, not a spark of an idea.
— O Auto da Compadecida (2000)
She won't change her mind.