I took my husband to see a neurologist. The neurologist said he has advanced past the moderate stage. Which I had figured from what I have read. However is it possible for the mind to act normal? He seems to be back when we first got married 6 years ago. I truly wish he didn’t have dementia/ Alzheimer’s.
One of the best things you can do is to read up on AD and learn how it affects your husband and yourself and what to expect (to some degree). “The 36 Hour Day” and “Surviving Alzheimer's” are two great primer books for caregivers. YouTube videos can help, search for “alzheimer's”.
She did have some unusual behavior every now and then but she was mostly like your husband who behaved like she always had.
There are many people on the forum with lots of experience with dementia. They are better equipped to answer your questions and address your concerns.
Wishing you and your husband all the best.