I think she started going insane because she realised that there really is no way out. At the end when the camera zoomed out into the void and that even further out to computer they're in you can see its the same computer in the weird backrooms looking place. So basically even if she managed to escape she'd just end up back where she started.
I think she started going insane because she realised that there really is no way out. At the end when the camera zoomed out into the void and that even further out to computer they're in you can see its the same computer in the weird backrooms looking place. So basically even if she managed to escape she'd just end up back where she started.