I read a lot of articles about 'Mental illness, Personality Disorder' ......they have lots of nice vocabulary, they created many good words to call it......they think, analyse the symptom, they study years about it.
They make it very complicate, ......etc

In my country.....and in my opinion + experiences , happiness is all about 'balance'
if any one lost their balance and cause others unhappiness, suffering, hurting or damaged others....
They should be called 'bad person'

The best way to heal our wounds is to 'forgive them' the best way to protect yourself is 'never forget it'

It's so simple !!!!!!
Don' t try to understand why they are like this or like that and giving them may good names of their condition, symptom.
It would be better to analyse our self and awareness living with 'mindfulness'