Answer:
Borderline personality disorder
Step-by-step explanation:
Borderline Personality Disorder: The term Borderline personality disorder is also referred to with BPD.
BPD is defined as a condition or situation of an individual who finds difficulties in regulating various emotions. An individual experiencing BPD would feel intensive emotions for a very long period and it is often hard for the person to come back to the stable condition after being triggered by an emotional event.
This is one of the serious mental illness distinguished as having difficulty in relationships and intensive mood swings
Symptoms:
1. Unstable relationships.
2. Extreme emotional swings.
3. Fear of abandonment.
4. self-destructive behaviors.
5. Explosive anger.
In the question above, Sarah is most likely to be diagnosed with borderline personality disorder.