Just as a matter of fact, it seems NO has not had an easy life. Living the high life with beauty, self made wealth, dating a successful wealthy man has it pit falls too.
Being married at 15 and pregnant, divorced at 17 gives us a look into her growing up years. It sounds like she was on her own, did what she wanted, with no adult supervision.
By 25, she is divorced a second time, with another child. What kind of life was she living?
Money whether yours or the person you are dating, is not what makes the world go around or makes life problems disappear. I imagine NO could have written a book on what she has seen and been through since she was 15.
Just think, NO was married and had a baby at the age of her oldest daughter. Pretty shocking to think about! Perhaps NO was remembering her life at 16, how she had messed up, and was severely depressed. If there was any truth to relationship problems, that would be too much for her to handle too.
This is just speculation on what triggered the M/S. Having regrets on her life, seeing too much negative (in her opinion), she took the girls with her. JMO.