Welcome to the forum.
However, this should be in
Enquiries.
To answer your question, the closest she's gotten is probably with
talkin' 2 myself
Kimi wa ittai nan ni obiete
Nani o sonna ni nageite iru?
ittai is kind of like
what the hell? or
what in the world?. That's probably what it means in this case. I think if Ayu was to scream it at us angrily though, then it could be taken as
what the ****?!?!?!?