Pablo was not wrong, the repressed teacher had not been able to avoid touching herself while thinking about physically punishing the burly boy, it was a fantasy, no teacher who appreciated his work would resort to physical punishment in Spain. The teacher knew that she would end up imposing a lesser punishment, but at least she would enjoy scolding the boy.
However, those minutes in which she had been masturbating in her office did not satisfy her, she needed more, she needed something that her beliefs would not allow her to have until she was married to a man. However, for some reason she never found a stable partner.
She had them when she was younger, but her drastic belief clashed with the modern mentality and the boys ended up abandoning her in search of simpler and more affordable pastures. She had spent more than seven years without any boy inviting her even for a coffee. That was why she had ended up bitter and focused on her work.