A search of Yahoo using the following keywords - suspecting alzheimers stubborn irritable - lead to the following information and article.
Alzheimer’s disease patients sometimes have personality changes that can be extremely negative.
Formerly sweet loved ones can become argumentative and even verbally, emotionally or physically abusive.
Things had gotten so bad I wanted to end my relationship with Ed, my soul mate of 25 years. He had become impossible to be around.
He was incredibly irritable, angry, mean and emotionally abusive.
What’s more he was making scenes in public on a regular basis, which was immensely embarrassing.