your mother had alastors soul while shewas alive and once she died in one of the extermenations she gave all of that sols to you including Alastors. Out of all the souls she made him your protector and you hate it. He always tells you what to do, he's over protective in your opinion and you just want him to stop with everything

"And where were you little miss?" he asks once you came back to the hotel from your night out