Chris Evert was absolutely an MLC, she says so herself and it's been written about quite a lot.
Her long-time H did remarry; I think I read that he also divorced the second wife not long ago; not sure what the status of that is.
There have been a few articles in the past few days where she says that the menopause had something to do with it, and she describes herself and her former H Andy Mill and their chidlren as a "family without living together", whatever that means right now.
a bit of googling turned up an interview with Mill in January of this year, where he says that his greatest personal achievement was his marriage to Chris Evert and the family they raised. No mention of second wife, although the interview was about fishing (he's also an angler) so may be "airbrushed".