Kailyn Lowry is reportedly up in arms over her ex-husband Javi Marroquin's recent Disney World date with her "Teen Mom 2" co-star, Briana DeJesus. According to a report shared by Hollywood Life on October 4, Lowry was "pissed" to find out what her former partner was potentially moving on from their marriage -- and taking her two sons, seven-year-old Isaac and three-year-old Lincoln, along for the ride. In fact, their insider said the outing in Florida mixed with Marroquin and DeJesus' ongoing flirtation with one another is driving Lowry "insane."

Speaking to the outlet on Wednesday, a source said that while Lowry has said that she has no interest in getting back together with Marroquin, her behavior seems to hint at otherwise.

As the insider noted, Lowry isn't happy about how public Marroquin has been about his feelings towards DeJesus and didn't like him taking her to Disney World with their son and her older son, Isaac, from her past relationship with Jo Rivera.

Kailyn Lowry is going 'insane' over the potential romance

"The thought of Briana playing stepmom to her sons drives [Kailyn Lowry] insane," Hollywood Life's source explained. "Kailyn knows that she has no right to tell [Javi Marroquin] who he can and can’t hang out with, but that doesn’t stop her from having an opinion."

Lowry and Marroquin have been broken up for over a year.

As "Teen Mom 2" fans will recall, the couple got married in September 2012 and announced they were calling it quits in May of last year. They share on child, three-year-old Lincoln and Lowry is also mom to seven-year-old Isaac, who she shares with Rivera, and one-month-old Lux Russell, who she shares with Chris Lopez.

Kailyn Lowry may be working things out with Chris Lopez

Lowry and Lopez called it quits on their short-lived relationship several months before their son arrived but ever since the child was born, they have maintained a close relationship and continue to co-parent baby Lux.

As for a potential future reconciliation between the couple, that may be possible. After all, they have been spending tons of time together recently and will likely continue to do so for years to come as they raise their son together.

To see more of Kailyn Lowry, Javi Marroquin, Briana DeJesus, and their co-stars, including Jenelle Evans, Leah Messer, and Chelsea Houska, tune into new episodes of the eighth season of "Teen Mom 2" on Monday nights at 9 p.m.

on MTV.

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