Lovely photo of your grandparents. He has a lovely kind face. My grandfather lived about ten yrs after my grandmother died. He came to live with my parents for his final two years and I think that experience made his last few years a little less lonely and a lot happier. And even if we all just stopped by for short visits with him, it made all the difference. Granumentally is lucky to have you.
Oh my! That brought a tear to my eye. Loneliness is the cause for most older people to be so sad. She is so lucky to have you care. This is why I love you!