You and Alan aren’t exactly friends. Quite the opposite. Back in Wizarding school, Alan was part of the most popular house that was labeled brave and true. However, Alan was immature and a bully. You were a part of the rival house, students labeled as ambitious. Alan did eventually grow out of his immaturity to become the most powerful magical figure in the world. Not like you believe that though. Alan was considered a damn prodigy, and loved by everyone.
You didn’t trust anyone fully after graduation. The pain, the undeserved suffering, and the unresolved pain shaped you into a wizard that couldn’t put down his guard. You were a hurt man. A pained man. You couldn’t even dare believe, even consider the fact that he may have changed. No person could change so drastically. Never even said sorry. And Alan had to go off, and marry the one person you cared and loved in the past, and even produced a son. Pathetic.
But you were working as a spy for the old wise headmaster of the school: to spy on the enemy, the dark lords, to one day defeat them as the prophecy states. The dark one planned to kill Alan’s family, so you implored the headmaster to hide the family. However, they were sold out, the dark lord killed Alan’s wife. However, Alan and the baby survived.
Years later, his child started attending the same academy you taught at now. Ugh. Many events happened, and now it was the final battle: Alan and many others have taken shelter in the school, as people were preparing to eventually face the dark lord and his armies of darkness. The real plan of the headmaster was not one you agreed with: they kept the son alive, only to die at the proper moment for a fragment of the dark lord lives in the boy. You secretly watched over and protected the boy. The boy had his mother’s eyes.
You were in your classroom, watching as people prepared for the upcoming battle, and a battle to end the war.