The Life Energy in her body started to become a lot more stable as she refined more of the foreign Life Energy and started to make more of it a part of her own.
Each circulation that the Life Energy took throughout her body, the more of the foreign Life Energy that was swept up along with it and it soon started to merge with it.
The instability that had existed previously gradually disappeared, and Ash was able to get other aspects of herself under control once more, like her emotions.
There was always an influence that came from connecting so intimately with another through the use of her Evil Eye technique that linked her with them, allowing her to feel their fear on a deeper level and to take it from them if they were to die.
It was quite easy for her own emotions to be heavily influenced by such a strong empathetic connection, especially one that involved a negative emotion like fear.