The first time that Jenna Dewan found out her ex-husband Channing Tatum had moved on was when his relationship with Jessie J made headlines.
In her new book, Gracefully You: How to Live Your Best Life Every Day, Dewan revealed she "felt blindsided" upon learning about Tatum's new relationship.
Dewan, 38, and Tatum, 39, announced their split in April 2018, and in October of that year, Tatum and Jessie J entered a high-profile relationship, according to Fox News.
"I was learning things about my ex most people wouldn't have to face — and over the internet, as it was happening," Dewan wrote in her book.