Carbuncle, I don't think so. All you really need to know is that she was the first wife of a successful Hollywood executive. If you catch a repeat of the first one of the series, she gives you a four minute 'okay, here's how I got here'
I liked it more than I expected to. I liked the miniseries, didn't love it, but liked it enough to watch the whole thing. I was glad to see the new series seems more ongoing than 'okay, we have six hours to wrap this up'. I love that her drunk friend is back, she's my favorite part of it. Also, Molly seems tougher now, which makes sense if the divorce is a year or so ago.