My grandparents got married in the 1940s. My grandmother is an extremely strong woman--very sure of what she wants and not afraid to tell you what she thinks--but she is also a product of her generation. For example, my grandfather held all their accounts in his name.
My grandfather appeared to have Alzheimers as he got older. My grandmother took care of him at home and the arrangement seemed to be working--until one month when she gave him the checks to sign to pay their bills and he had lost the ability to sign his own name. At that point it was a mad dash to get their accounts handed over to my grandmother. But she continued to care for him at home until less than two months before his death almost a decade later.