arcadian-time-lady:

Seeing a lot of people thinking that Clara is upset because the Doctor handed the decision over to the humans, and while that is certainly part of it, mostly I think that Clara was upset because he left. Even if the Doctor couldn’t affect the outcome, he could have stayed by Clara’s side.

Just like she did for him on Gallifrey.

And that is why she is devastated, because while she was there for him, he was not there for her.