Mara5525:

...The ideal is a marriage that is mutually satisfying and meaningful, but 40 years is a long time and sometimes things happen. The widow needs to forget about it, not dwell on how wronged she is, if it happened and just let it go.

After all, she let it go 40 years ago, anyway.

Yeah, she put it to rest a long time ago, then along comes this selfish cow wanting to unload her guilt. What possible motive could she have? "I wanted to set your dear heart at rest and confirm your suspicions?" Yeah, right...

I do, however, pretty well agree with everything else you wrote.