Oh, Susan, how difficult! To share (without permission) or not to share? I suppose your professional ethics told you that a confidence should not be passed on, even if it is a good one. But probably your conscience said otherwise....

Maybe it is not too late to tell him, perhaps next time he comes? But you know the situation and must do what your inner conscience tells you is right.

As for the lady not telling her husband, she may have forgotten straight away, given her condition, or perhaps the British "stiff upper lip" about not discussing deep love just got in the way.....