Bless you, Charlotte,
My father had Alzheimer's and died 15yrs ago. He was in an Alzheimer's facility over 5 yrs. I bless you for loving and continuing your faithfulness to your husband. I know it's hard; very hard. But in my case, despite the hard stuff, I remember laughing a lot. My dad had a sense of humor, and during some of his more lucid moments he could hang me out to dry with his humor. Unlike some, he passed before he totally forgot my family. Yes, there was confusion, but for the most part he at least knew we were people who loved him even if he could remember names.
Jesus will bless you as you continue to honor the covenant you made with your husband to love and honor him. I bless you for your devotion. Your rewards will be many.