My dad is 83 and he and my mom live together. She has vascular dementia. He has always done whatever she said to keep peace. Now the dementia is causing her to be compulsive and urgent. He does whatever she asks. I think he's to old for this. He'll drive her 100 miles to visit someone that isn't expecting her, take her to 8 stores looking for a certain non existent item, and do excessive yard work, etc.. Now she sometimes doesn't recognize him, then demands that he not let that "other stanger" back in the house. He just agrees. How much is too much for an old man?