Though, of course, I can't answer that, it's possible but it's also possible that she's just a really healthy, wholehearted person who recognizes that her husband's horrible choice doesn't define her in any way. And then I came across this on this site here, which perhaps explains it as well:
It has never failed that when I have been through the most heart-breaking passages of my life – betrayal, financial hardship, divorce, dreams dashed – the pain brought me to the floor of my being, and what was there to be found?: The simple joy of being alive. So cosmically basic it's mind-blowing: the joy to be here, connected, animated, breathing, blessed, resilient, to be broken, to be open, to have what was, what's left, what's coming. The joy just to be part ofreality.
What do you think?