Can There Be Joy Behind the Pain?

A betrayed wife recently commented on this post that she wondered if she had recovered too "easily". She was six weeks out from D-Day and, though she had her rough days, nonetheless was feeling pretty positive. She asked if I thought she was maybe in denial.
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?