She's brutally honest and it confuses everyone so much that everything goes very well for her. Love it!
My annoyances: in the beginning Bella is supposed to be a small child who can barely talk but her facial expressions (and comedic timing) are those of someone with way more advanced social skills. A very tough role. The general and the cynic adopt the same hyperrationalist deadpan of Godwin & crew, with no good reason (the director did basically the same thing in Killing of a Sacred Deer and it seemed worse that time). The final scene felt cynical and out of character.