Moirainr, your details are not boring. I know about Dimentia, because my mom also has it.
My DW and I, with help from my son took care of her for some time. We lived in her house for over a year, because our place is not that big and it has stairs.
Eventually we had to put her in a nursing home because she developed some other health issues.
Physically she is doing better over there, but of course her Dimentia keeps on getting worse.
God bless you for taking care of your dad.