A severe lack of confidence is a defining trait of Betonyfrost. While it is likely not going to be the first thing one notes about her, the effects of it can be felt throughout the whole of her personality. It isn't often that she speaks, and even less often that she does so at length. Everyone else is more capable than her-- they can and will say it far better than she ever could, so why should she even try? Following the same vein, Betonyfrost conceals her emotions with a startling amount of accuracy in an attempt to keep herself from the public eye.
The other pillar of Betonyfrost's personality is her anger. Her habit of hiding her emotions means that it is rare to show, but her anger comes on quickly and lingers, to the point that is a near constant for her. When it does show, it manifests as sarcasm and immaturity. Betonyfrost is capable of deep and lasting hatred, often without the other party knowing how Betonyfrost truly feels.