These people are inconsequential to the transplant laws. Mark my words nothing will come of it.
As far as the emotional response, it is amazing how much people put sex as the main part of a mariage. She went to someone else. He coldn't for whatever reasonb provide what she needed. How about this, she maried him for his money and kidney. Either way, the system will not allow the transplant rules to be tainted because of a couple of scumbags who can't keep their business out of the news and are too weak to save their marriage. I know people who have recovered from adultery. It can happen. People leave each other for a lot of reasons. If he loved her enough to give her a kidney then that's the end of it. If people cold change their mind and demand compensation after the fact it would corrupt the system. Besides the law frowns upon "Ex post facto". It won't hold in court. Another pissed cuckold, if he had any pride he wouldn't be advertising that fact that he may have been second in line, if you know what I mean.
It's not like she left O.R. and had sex. Maybe he cheated, who knows?