I don't recall her being surprised. Maybe I missed something in my own writing?
She asked why didn't Lucian say anything about it as if she was completelly unaware of its existence
She was unaware of it. She only knew that there were a lot of aspects. Anyway. Things become clearer later :)
So Astor never told her that one aspect flat out tried to murder Lucian?
The devil is in the details as they say.