My husband has dementia also. I have known it for about 3 years. First he stopped going to his weekly card game and than he stopped going out to Saturday lunch with the guys. The memory loss is there ,the remote and he fight daily.
Tarajane, there are some good bloggers on this website, example look for Marlis Powers who is taking care of her hubby Charlie, she keeps us up-to-date with his Alzheimer's and we can answer her postings. https://www.agingcare.com/Blogger/Marlis-Powers