Don't tell me it's like a "misunderstanding " or that the emperor actually likes her. I don't get the logic of those cheating emperors that try to make their wife jealous or something.
she should just go and date someone else, or kill both the emperor and the other lady and take over the throne
I'm going to make a crazy assumption the priest and that lady are scheming and her true hair isn't pink either
He didn't cheat, but he has apparently no choice but to Break their engagement because she isn't the person of the oracle anymore and i believe that only the person of the oracle can be empress.
He is just trash oracle or not he treat her like sh** he could handle this problem without having to ruin her reputation but he did not. He may be didin't have choice to divorce but the way he did this he could chose
Killing people over breaking a arranged marriage is psychopathic yandere behavior imo 
