I don't doubt the mental illness (bipolar) aspect of her reason for doing it. If you watched the YouTube video, it says her brother committed suicide. Mental illness often runs in families.
Since she and her husband had a good business, I doubt this had anything to do with money.
It seems like she needed and craved attention and having men lusting after her gave her the adulation she needed. The money was secondary.
But there is still no excuse for her sad sack husband. He should have dumped her unless she got therapy. He was probably some cuckold who got off on his wife being used by other men.