She didn't go, she made a private visit to the funeral home and that was it. He died in their home and she did have his wife and children, one of whom was deaf, contacted as soon as he died and she did do her best to remove herself from it all and let them carry out the final farewell. But so what? She had lived in adultery with him for years, somehow she is to be praised for letting them bury the dead?
She was a great actress, for whatever that is worth. There are great ladies in this world whose name we'll not know in this life, those are whom I salute.
As another adulteress profoundly wrote of a faithful wife in her novel Middlemarch, "..Her finely-touched spirit had still its fine issues, though they were not widely visible. Her full nature,...spent itself in channels which had no great name on the earth. But the effect of her being on those around her was incalculably diffusive: for the growing good of the world is partly dependent on unhistoric acts; and that things are not so ill with you and me as they might have been, is half owing to the number who lived faithfully a hidden life, and rest in unvisited tombs."
I'm willing to look uneducated, who penned your wonderful quotation.