I'm so happy to hear you've had some progress. Hopefully it's dealt with appropriately from here on.
bear in mind, the PA has said he is aware of the situation but the principal will only know what his people have told him. Not necessarily your view (depending on what you conveyed to the PA) so make sure you get your time with the principal. So he understands the emotional impact this had had.
Youve dealt with this situation really well so far. Hope your DD is doing okay.