You must mean comment 1,205. I remember reading about it, but can’t tell you from originally where. This newer article from 2020 explains it pretty well. It’s a Daily Mail UK article - US MSM would never print anything like it because it’s not good for Joe.
https://www.dailymail.co.uk/news/article-8635281/Jill-Biden-cheated-husband-Joe-ex-claims.html
Also in the article it says he is writing a book but he is holding the title pretty close to his chest.
Facebook deleted my post of article about this. I think I’d already been kicked off Twitter for trying to post NYpost.com article about Hunter Biden’s abandoned laptop.