[Castiel would not want to inflict his memories on anyone, let alone a young girl who he's never before met, though he has seen her face show up on the network a few times.
It must be difficult for her to understand or parse in any way, just as the memories that have been inflicted on Castiel make less and less sense the more he thinks on them.]
You shouldn't have been exposed to them. [He appears to be more regretful than angry on that count.
The areas in the mansion that haven't been altered in some way are few, but Castiel still leaves the choice to her.]
Video
It must be difficult for her to understand or parse in any way, just as the memories that have been inflicted on Castiel make less and less sense the more he thinks on them.]
You shouldn't have been exposed to them. [He appears to be more regretful than angry on that count.
The areas in the mansion that haven't been altered in some way are few, but Castiel still leaves the choice to her.]
You can choose the place.