I had a good friend that had dementia and they put him on different meds and he lived another 8 years or so more or less on his own. He drove from Seattle to Yuma every year by him self. He passed away from lung cancer last year. I miss him as he would come by my house sometime 3 times a day as he forgot he had already been by. He was 88 yrs old. No I don't recommend living by your self as he did although he talked to his Daughter daily sometimes forgetting that he had already talked to her twice that day. I would say go camping or whatever as long as you can and still manage your Husband. Live life as tho there is no tomorrow