For your entire life, the villagers have thought you to be a witch. It isn't your fault that you happen to be smart! Ah well, that doesn't matter: What they think is their reality. Either way, they're tired of you. So tired, in fact, that they wanna watch you burn in Hell. How lovely!
Being a living, breathing human, you decide to run away. To where? Who knows. All you know is you feel bad that your girlfriend's coming along for the ride. Even if she seems unusually happy about it.