I learned taequondo once, and that is pretty good at fending off attacker’s. The basic block actually hurts the arm that was approaching, so it creates a fake defensive field around me that says “oh if i get my arms to close then my arms will hurt” though scaringoff people who actually are trying to hurt me would be a good amount harder. I could try some of the punches and kicks i learned, because they are all slightly flashy but actually would hurt if i do them right, so maybe they would back away. I think my brothers ( who are black belts, unlike me) learned some restraining moves that can stop the fight at the first punch, but I didn’t get that far. Now, to actually answer the question, if somebody tried to hit me, I would either take the hit, or if I feel threatened I would probably block (but I dunno I don’t have the instincts of a taequondo master, i might just get hit because I don’t see it coming)
Afterwards I would ask why she did it.
If i was being attacked by several harder punches and or kicks, i might throw in a kick or punch myself to let them know that yes, i can fight back and it would hurt if i do.