Edit: I'm up before 5am all this week so wasn't up to explaining my point about Ampleforth earlier.
There's huge backstory we're not being told here. Ampleforth was a centre for child abuse.
Children were not safe there. This should have been mentioned.
My assumption is that the subject is both too uncomfortable to have brought up and easy enough for listeners to find when they Googled Ampleforth.
Guardian article from November 2020 -
New pupils barred from top UK Catholic school after abuse scandal
The name of the building 'Marie' stays in is 'Junior House'.
New staff don't stay long there because of the unsettling atmosphere.
People experiencing physical abuse, especially in repeated attacks, may dissociate.
Perhaps the crying boy is a tulpa unintentionally created by the continued suffering and consequent dissociation of one or more of the abused Ampleforth pupils.