reacted, responded
Si no me hubieras hecho correr, habría reaccionado.
If you hadn't made me run, I would have reacted.
— Contratiempo (2017)
Podría haber sido peor si no hubieras reaccionado tan rápido en ese momento.
It could have been worse if you hadn't reacted so quickly at that moment.
Puede que haya reaccionado de manera exagerada.
I may have overreacted.
No debería haber reaccionado de esa manera.
I shouldn't have reacted that way.