Yes, indeed. Quantify your position, please. How much responsibility for the physical altercation does each party bear?

I would say that the boy is primarily responsible for the altercation. Without his egregious, deplorable, and criminal harassment instigating her response, there would have been no altercation. That translates to 51% to 100% of the blame.

The school bears secondary responsibility. The school acts in loco parentis. They are obligated to adequately supervise and protect their students. Here, they put harasser and victim, unsupervised, in close proximity to eachother. That is completely unreasonable. That translates to 0% to 49% of the blame.

The girl's responsibility is less than that of the school. She was suffering undue sexual harassment. She reasonably asked for relief from that harassment, and her requests were refused by the school charged with providing that relief. She was under duress at the time of the altercation. With those factors, full and sole responsibility cannot be assigned to her. That translates to 0% to 24% of the blame.

Do you believe she bears more than 24% of the blame for the physical altercation? Do you believe she bears more responsibility than either the boy or the school? Quantify your position, please. I want to know exactly how much blame you are assigning to the victim.