What are the drawbacks of living off a very rich married man?

There is a very beautiful, charming woman in our town, now pushing sixty, who has been showered with expensive gifts, trips, cars and designer clothes for about 25 years by a very wealthy oil man who is around 80 years old and married. He is in the oil business, collects fine art and rides with her in limousines. She used to be married to a urologist so many doctors and other people know about her. I think she must feel guilty and lonely at Christmas and at other times since he would be most likely with his wife and kids. In other words, she has what some call a bad reputation with her three closets jammed with clothes and shoes.
How would you advise her if you knew her? Or would you just ask her where she has been in the world with him? Would you feel sorry for her? She told a friend of mine her girlfriends have dropped her and steal from her. What are your thoughts on this type of lifestyle? She has kept up her figure. She has a gorgeous figure and always has had one. I recall decades ago she was taking downers from her then husband’s pharmaceutical stash in his office. Her ex has been married four times and he also has quite a reputation. Men: don’t bother asking for her phone number. Her boyfriend operates his own oil business and has three homes in two states. Women: I am not judging her. I just wonder what you feel about her lifestyle.