Answer:
dissociative identity disorder.
Step-by-step explanation:
Dissociative identity disorder: In abnormal psychology, the term "dissociative identity disorder" is also denoted as DID, and was formerly known as "multiple personality disorder or MPD", and is described as a one of the different mental disorder that is being distinguished as maintaining two or more different and relatively enduring "personality states". However, this is being accompanied by "memory gaps".
Causes: Early childhood trauma including emotional pr physical abuse.
In the question above, Alexia is showing symptoms that are consistent with a dissociative identity disorder.