Betty is a sensible and down to earth performer, who has grown up with her sister and is familiar enough with her to know when she is up to shenanigans, such as using their brothers’ name to get the most famous performers on the stage to check out their show. She has a quiet calmness about her that makes her attractive to Bob, mostly because her head isn’t full of future prospects of show business, so much as a desire to have a normal lifestyle – to become a wife and have children. She assumes she has to look after her sister, and puts a lot of time and effort into taking care of her. Even though it devastates her when her sister announces her engagement, Betty puts on a brilliant smile and congratulates her – showing the “expected” emotions for the situation rather than giving in to her genuine feelings. She is upfront with her emotions at all times, telling her sister that she will go fetch a sandwich not because she wants one, but because Judy won’t let her sleep otherwise; telling Bob how much she likes him and that she’s so happy that he’s doing such a wonderful thing to the general (she admires it). She knows the financial sacrifice he is making in the process… but her inferior Ne creates a worst-case scenario, based on her limited interaction with him and her own negative expectations, that Bob is going to profit off what he’s doing. She doesn’t question what the maid overheard on the phone, or ask Bob to explain himself, simply leaps to the wrong conclusion that it’s true and punishes him for it.

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She has a moralistic streak, does not want to be seen as inappropriate, and immediately tells Bob the truth, that her sister used their brother’s name to send a letter to him, to come and see their show, since she has brought them there on false pretenses. She admits that she only wants to take care of her sister, and thus she has neglected doing anything about her own life in the process – she has not pursued her own romantic attachments, because she assumes she must look after someone else (which also makes it easier to avoid stepping outside her comfort zone). Betty does not want to argue with Bob, and when they disagree the first time they meet, she says their acquaintance will be too short to waste time arguing, thereby bringing them into peace with one another again. Even though she is furious with him, when she erroneously believes he is using the general to further his own career, Betty refuses to come right and accuse him of anything, so she passive-aggressively refuses to talk to him instead, and even boards a train and leaves him behind without saying goodbye to anyone (including her sister; though she puts on a happy face for her, she wastes no time in finally detaching from her and getting a solo career far away from them all, to punish them and put some distance between them).