Just for the record, they didn't marry till after the bout with cancer. He didn't even know his wife then, he was dating someone else entirely.
He didn't even split up his marriage for Crow, it was for some other woman who was aged 28, from what I've read -- and Cheryl Crow is a looong way from 28...
What? He was married with kids when he had cancer!
Not bad for a middle aged menopausal gal.