Answer:
Mood Dysregulation disorder
Step-by-step explanation:
Violet may be suffering from mood dsyergulation disorder which occurs in children or adolescents. violet is irritable, mostly angry and aggressive and shows signs of depression because she's usually sad and unhappy. This could be due to some factors such as loosing a loved one to death, e.g parent or sibling, difficulty adapting to school environment or difficulties making friends.