During Friday night’s episode of Marriage Boot Camp, things got super awkward on Twitter between exes Kailyn Lowry and Javi Marroquin as they reacted in real time to what was happening on camera. As In Touch previously reported, the Teen Mom 2 stars’ therapy this week included an exercise where the couple wrote down the things they hate about themselves.

After seeing his ex-wife’s list, Javi said Kailyn has a lot to be proud of, and shouldn’t be saying such horrible things, but the 25-year-old mother-of-three responded, “I don’t believe him, because a lot of these things are the things you tell me on a regular basis. So now that you’re telling me you don’t believe them, I don’t believe you.” During the episode, Kailyn tweeted, “Wow, disappointed in yourself that you let OTHERS influence how you treat the mother of your child, yet here we are again.”

But the diss didn’t sit well with Javi. An hour later, he wrote, “Someone’s bitter and can’t move on from s–t that happened almost 2 years ago. #yesterdayspaper #MarriageBootCamp #moveon.” He also referenced the former couple’s four-year-old son Lincoln, writing, “Have more important things to worry about right now than a past relationship that’s dead to me. Lincoln is the only thing keeping it alive. Which I’m blessed for don’t get me wrong. But him, that’s it.”

Javi is currently dating his MTV co-star Briana DeJesus, while Kailyn has been busy with a new baby. The Pennsylvania native welcomed her third child, son Lux, with ex-boyfriend Chris Lopez in August. She also shares a seven-year-old son named Isaac with ex Jo Rivera.

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On the same day that their Marriage Boot Camp episode aired, the duo revealed they’re no longer working together on a tell-all book series. “I wanted to keep our co-parenting relationship intact and didn’t want to make any significant others uncomfortable,” Kailyn told Us Weekly. “We would have had to spend time together for promos and [a] book tour, but we are not in a place to do that right now.”

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