I had also meant to respond,
@Muddy Cyclist
When mum was at The home, and sliding away from us, the little comfort I could take, was when she asked about her mum, sisters, brothers, it was as if they were alive.
And while mum struggled to know who I was or any of us, a little light did come into her eyes
Whenever any of us visited.
While we list out on her memories,
Out of that I took comfort that for her, in her own little world, every one she loved was still alive, and likely to visit at any point.
I don't think she was ever really sad, and if I'm honest except when water infections sent her off the rails, once settled at the home I think in my heart she was happy over all.
Hope some of that give some context & consolation to your wife.
They may 'lose' us,
But they gain so many others they loved.
An awful trade off maybe, but better that, then they lose everyone, and live out their days trapped in that twilight world, completely alone.
Hug to you all.