Perhaps she wants to be the next Oprah. Her stay at Oprah's Hawaii cottage might be more than just a 50th birthday party for her. She can have all the money and public adoration she can handle, without all that bothersome political stuff. Once Michelle Antoinette abdicates, a whole new world opens up for her.
Unlike Hillary, who was better off staying with the cheater because her goal was power politics, Michelle would be better off dumping her cheater and playing the "wronged spouse" for all it's worth, because her goal seems to be victimization, fashion and celebrity adulation. A divorce would keep her and her daughters in the women's and fashion media for the rest of their natural lives. Hillary couldn't make that cut.