At first, i was really angry at what had happened to Tally. I felt like I'd lost the person I had spent so much time getting to know but gradually, throughout the book i began accepting that it's a little selfish of me to want Tally to be the same person forever and that what happened was outside her control and vital tot he story. Grudgingly.
I loved how Scott westerfeld didn't sugarcoat the ending to serve one side. It gave the story so much more authenticity than any other ending would have. Brilliant work!