The article from the tabloid Josei Seven had stated that Endo had allegedly broken a promise with Chiaki that specified he was not to re-marry until their daughter had become a junior high school student.
Endo (alongside Housei) was on a talk show about tabloid news recently called Kugizuke, they brought up this article:
https://www.youtube.com/watch?v=EfzQPqW ... .be&t=1638
Typesoshee kindly translated what Endo had to say about it:
The tabloid was saying that Chiaki was angry at Endo because Endo had promised her that he wouldn't remarry until their daughter started middle school. Endo denies and explains that there was no such agreement. Hosei jokes that Endo did tell him that he had such an agreement. Endo says he told Chiaki and their daughter that he was remarrying and that Chiaki was cool about it (Chiaki already knew the two were dating) a short while before the tabloid rumor spread.