IWill blogs
My mother in law had lost her father just like this, where he got unwell and couldn't revive back, so this had made her internalize that she would lose her husband too. My mother in law's life revolved around my father in law since marriage and so the fear of losing him, and seeing him unwell, make her go into deep shock and feel like life will have no meaning.
She smiles, she sits with us, she cooks and posts pictures online and to her friends, she feels life is worth and that has been my most rewarding thing to see, to see my mother in law come back from depression and leading a great life