And I am sad for him that he was married to a woman who couldn't do that, and apparently (based on the emails), never could.
Mmmm . . . maybe. Don't believe everything you read in the emails of an unfaithful husband.
You know, it's quite possible that when the marriage began, Mrs Sanford thought her husband was the most wonderful man in the world. She probably did or she wouldn't have married him. And then she found out over the years that he wasn't wonderful at all. Maybe she understands him very well and knows he's a sleazeball. It's tough to be supportive and loving then. I've seen this a million times.
It's possible that no wife on earth could provide enough support and worship for the ego of a narcissist (and most politicians are narcissistic). Living in the DC area as I do, I've seen this more than a few times, too.
It's also possible that Maria Belen Chapur would have discarded Mark or he her if they had had a chance to be with one another full time to see each other's shortcomings and errors and humanity. It's easy to romanticize about someone when you can't see them for long and just have time for passion. Seen that as well.
Don't blame the victim here.