Thank you, Helene.
Yes, I think it’s no problem for the female (if it indeed is a female…) to find plenty of hiding places. I am not afraid he might harm her.
And I think it’s a female indeed – I posted a photo showing both, the male displaying, here.
Here is another photo – at this time there was no aggression to be seen, it started a few days later.
I hope you are right and this might be a sign of a forthcoming mating.