Dementia Support Group
Dementia is the progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Particularly affected areas may be memory, attention, language and problem solving, although particularly in the later stages of the condition, affected persons may be disoriented in time, place and person (not knowing who they...
But what you are describing, Mom certainly went through it to some degree.
You need to get him to a doctor and investigate further. There is definintly something wrong with him. You just have to find out what.
Good luck and give us updates when you have them.
I always recommend that the spouse whose parent it is be the "face" to them for your family.
If he will not go, contact the local social services agency for advice.
It is out of the ordinary by any name you call it and it needs to be addressed for everyone's safety, physically and financially.
Best wishes,