At some point, she became concerned about the race. She tried her best to protect it but quickly realized it was a foolish decision.
She couldn't protect them all because some didn't even want her to protect them. She was even betrayed, which made her realize how cruel the vampire world is. That alone made her see the other side of the coin of a race that claimed to be noble.
But the desire to protect it was still there inside her. It hadn't vanished; she had simply stopped being as naive as she was.
Even so, thanks to having been traveling with Matthew for a long time, she had been able to see more things than a person of her status could see. She had learned more about the other side of the coin and understood the difference in many things.
That's why she could understand what he was referring to.
In the end, she ended up agreeing.
