"Teen Mom 2 [VIDEO]" star Kailyn Lowry is allegedly very worried over what secrets her ex-husband, Javi Marroquin, may reveal in his upcoming tell-all book. The MTV mom opened up about personal details of her life with Javi in her memoir, "Hustle & Heart," and now Javi is planning to do the same with his own book.

Javi's book is still coming

Javi Marroquin recently told Radar Online, that the book is still coming, but that there is a bit of a delay due to issues with Kailyn Lowry. [VIDEO] The "Teen Mom 2" star reveals that he needs permission from Lowry to say some of the things that he has written in his book about her and their marriage and that she's "not happy" about some of the content in the memoir.

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Since Kailyn needs to give her permission on some of the book's content, it seems that she could hold up the publishing of the memoir, or even have parts of it changed if she disapproves.

What might be in the book?

However, Javi claims that he will get his side of the story out there when it comes to what really when down in his relationship with Kailyn, and in the months following their split. As many "Teen Mom 2" fans know, Marroquin left for deployment, and while he was gone, the couple decided to divorce. The split came after a rocky time in their marriage where they had been fighting a lot over many different issues, and also suffered the miscarriage of their child, an event that Lowry said Marroquin blamed on her. Kail was very open about the miscarriage, saying that Javi was very unsupportive after it happened, which made things much worse for her.

Lowry and Marroquin to appear on 'Marriage Boot Camp'

Meanwhile, both Javi Marroquin and Kailyn Lowry were accused of cheating during the time they were apart due to Javi's deployment, but Javi insisted that he was not unfaithful.

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However, Kailyn has admitted that she was. The couple went to "Marriage Boot Camp" together, (The show will begin airing in October.) and the "Teen Mom " admitted that she had slept with Javi's best friend, who is a female.

Marroquin said that he wanted to fix their marriage and make the relationship work, but things didn't happen that way, and the couple eventually finalized their divorce. They currently share custody of their son, Lincoln, and Javi often spends time with Kailyn's oldest son, Isaac, whom he helped raise during their marriage.

Kailyn's move on

Meanwhile, Kailyn Lowry has been busy since her split with Javi Marroquin. The "Teen Mom 2" star announced that she was expecting her third child with former boyfriend Chris Lopez, and the couple are currently enjoying their time with their new little bundle of joy, a baby boy whose name has yet to be revealed.