Dear friend, welcome and thanks for entrusting your query here at HCM !
She seems to have suffered some hypoxic brain damage
after hanging attemot.
It will be seen manytimes as abnormal areas on a MRI
It can explain her memory loss
and behavioural abnormalities.
You can consider taking a good neurology opinion.
During hanging the blood supply to the brain going via your neck vessels gets inturrepted and hence the brain damage ensues.
Improvement may take 2-3 months to occur to varying extent.
I hope you are fully satisfied with the guidance I gave.
I would be glad to answer any further queries.
Thank you and Good luck !