I thought a lot about this one. What would I do? Given the circumstances, I would do the same. It is one thing if the wife would have come to him at some time in the past, in tears, confessing the whole thing because she could not live with the guilt. Perhaps that would almost demand forgiveness. It would also mitigate the breach of Trust. If she is willing to confess regardless of the consequences, there is a spark of concience there, and I think that I could find it in my heart to trust her again. However, if I am the one who discovered the affair (particularly if she had kept the evidence for so long), there would be no mercy.