Hold up, are Jacob and Matt Roloff feuding?! That's certainly what it seems like. The former Little People, Big World star and his father haven't been seen in any photos together recently. Not to mention, the 21-year-old seemingly threw his dad under the bus in his new book.

On May 31, Jacob released Out to See and opened up about his "father figure," Mike Detjen. "I appreciate Mike's influence on me a lot," Jacob wrote. Apparently, he met Mike through soccer and would often drop Jacob off at games. "Some took place hours away, and he would get me reading Popular Mechanics and Popular Science out loud during the long drive," Jacob said, before adding, "I expanded my mind and learned new words from the writing inside those magazines, and even things I didn't fully understand helped me later as a writer and reader."

Unfortunately, he passed away from "cardiovascular complications" in 2008. "I don't remember the days afterward very well — only that I skipped school for a few days and was likely very foul to anyone around me. I cried often."

Let's not forget that Jacob doesn't follow his dad on social media and barely mentions him in the book, though he goes on in length about his mom and siblings. He also went into detail about the show specifically, calling it "ridiculous reality TV." Ouch.

There was, however, a post that Jacob shared back in February that cleared up rumors about his famous family. "You know that feeling of dread when someone is scrutinizing you and you think, 'Hey, this might be true about me," until they slip up and say something totally bonkers and wrong, and you sigh with relief because they are so off base?" he wrote on a throwback photo with his parents. "I feel this every. single. time. I see a headline regarding 'rifts' in my family. It is just so simply and surely untrue! This is a good picture of a pure, early, easy, fun time in my life." Well, maybe there's no beef after all!

Little People, Big World airs Tuesdays at 9 p.m. EST on TLC.