If it's mentioned to me, I express sediments along the lines of, "I know that when his W was well, had she known that this would happen, she would have given her blessing to this R".
Good on you!
I would also (depending on the convo) say how much I admired him for continuing to visit his wife who doesn't even know that he's there.
How hard it must be to have been with someone for 30 years and have their body live on when their mind has been lost in the mists of disease.
How he could have easily taken an easier way by divorcing her and never visiting her again.
And I would be hard-pressed not to ask the whisperers if they had spent as much time praying for the man and his wife as they had spent gossiping about them.
