Yes, I hope she can get some rest now, after worrying for so many years about him.
Think what she had to go through, constant worry about his safety and health, the shooting, the cancer surgery, then his final illness which lasted for an unbearable time.
She deserves a rest, though I'm sure she'd prefer that he never had to leave this world.
My mother died with a form of dementia.....Although we still miss her today....We grieved more as she was dying then when she finally died....I'm sure Nancy will miss him terribly, but a part of her will be relieved that "it's over". My heart goes out to her. A wonderful first LADY!