codamedia ***** SPOILER ALERT - Move on if you plan on watching the movie *****
To me that is what made this ending so good.... In order to carry out her plan (mission) she had to learn, display and use the absolute worst of human behaviors. Lies/deceit, manipulate/use, calculated murder (arguably in self defense) followed by a complete lack of empathy by leaving behind (to die) the one person she could have actually trusted. It is a horrifying (and plausible) view of what AI can be capable of. ...
We have to ask OURSELVES why we do this to our own children ... because I believe in this book and that book and you can't do that, etc, etc, etc ... and many of us are very dishonest about that very situation when it comes to our own.
To me, I call this ... a book in between us ... not a person ... and an ideal between us, not a person ... and this is the part that is very scary, regardless if it is a religion or science fiction or just plain human friction!
Look, many of us had to leave home to be able to grow up! IT IS NORMAL. At that point, it does not matter if it is dead or alive. I have the same situation ... if you want an example -- most of you don't care! -- my dad was/is a famous writer in Portuguese Literature ... and because of it, no one, not even any of you, will EVER read a single poem, story or make a credible (constructive) comment on it. What do you expect? I have no choice! I have to "kill" what is before, so I have a chance to find out what is me ... I can't be someone else. But as is the case in many situations, there is one country, one God ... and the children are meaningless.
Why would she do that to the person she could have actually trusted? The whole thing was not about trust! It was about individuality and her ability to be and learn on her own, which was damaged and controlled?
Film at this point ... can be deadly ... and scary. Gaspar Noe is one of the folks that constantly spends his time in this area, and he just rips you to shreds with what he is showing because we recognize a lot here and there ... that it is very much us. But we always look the other way. The "reality" becomes UGLY ... but in many ways ... it isn't. It's the way it is.
As Aleister Crowley said, cynically. the crashing of galaxies is a great tragedy for many things, but for us, it is a spectacular light show!
Guess what the movie is doing!