AITA for breaking my grandma’s heart?

Behind closed doors, a family’s fragile facade crumbles under the weight of silent suffering. A sixteen-year-old girl watches helplessly as her father’s harshness shadows their mother’s every move, casting a dark cloud of fear and shame over their home. Though the pain is palpable, her voice trembles in silence, frozen by the overwhelming fear that keeps her from standing up.

Yet, amidst the quiet despair, a fierce spark of defiance ignites in her brother’s heart. Refusing to accept their mother’s torment, he chooses courage over comfort, planning a bold escape to protect what remains of their family’s dignity. His resolve challenges the oppressive grip of their father, offering a glimmer of hope in a world too long controlled by fear.