Answer:
The correct answer would be, Borderline Personality Disorder.
Step-by-step explanation:
A Borderline Personality Disorder is a mental disorder in which the person suffering from this disorder has problems functioning in everyday life. The person has self image issues, he finds it difficult to manage his moods, emotions and behaviors. He has a series of unstable relationships. The concepts of the person about himself and others change drastically.
So in this question, Anna has unstable relationships, unstable emotions which ranges from love to hate within a short period of time. So she is surely suffering from Borderline Personality Disorder.