Warning: this is my opinion and how I perceived Diana

DIANA DID NOTHING WRONG!!!!

In book 1 she ASKED Caine to set up a contract with the townies for food, but he had to go rule it.

She stayed and took care of Caine in Hunger even though it was dangerous.

She chose to stay with Caine even though she knew they'd be hungry even when she got asked be Sam to stay in Perdido Beach.

She stayed with Gaia with hopes of reviving the baby within.

She was the one to cut Drake's arm off even though she hated him.

She felt guilty and was mentally scarred by the cannibalism.

She about died a lot

She almost committed suicide to save the Brattle-Chance kids

She went through hell and still came out alive

She did nothing wrong and came out with one of the ones who lost the most.

Rant over