Oh wow didn’t their troubles come to surface -at least for us mere mortals -once that doc came out and became public? Didn’t she fund that thing her entire self, too?!
“Allegedly” he objected to her commercialization of their intimate life, in spite of specifically asking her not to, and she wrote the lyrics anyway.

Supposedly another issue was her getting into the liquor business and spending time promoting her product and the party lifestyle.

Interesting speculations, but ultimately only they know the full story. Hope the kids can remain friends, seems they formed some strong bonds