Obviously we were not present in their home when the upset happened and were not privy to the behind the doors decision on the part of the Head Master. But what we do know is this young woman was a student last Tuesday and kicked out of school on Thursday...., two months away from her graduation. That, my friend, is a fact! The mandate on the part of the preacher is that she "must" live with her parents and not her brother.
So all you have is gossip? Based on the gossip you've presented, I would say that the daughter made a poor choice and now has to deal with the consequences of that poor choice.