Leah Messer may have some serious trust issues when it comes to her boyfriend, T.R. Dues.

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Months into the Teen Mom 2 star's secret romance, she has allegedly set strict rules in place for her man, and his ex-girlfriend isn't happy!

“She won’t let him come into my house anymore to drop off or pick up our sons,” Mandy Winnell, the mother of Dues’ children Tyshawn, 8, and Angelo, 4, told Radar Online on Monday. “He has to let them out of the car and watch them walk to the door!”

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“He and I worked so hard building a friendship after our relationship ended, and now she’s ruining it!” Winnell continued.

According to Dues' 28-year-old ex-girlfriend, the reality star is “threatened” by her, and feels that her cordial relationship with Dues is “disrespectful.”

“She feels that because she meets [ex-husbands] Corey [Simms] and Jeremy [Calvert] in public places to exchange the kids, T.R. and I should do the same,” Winnell revealed. “She thinks it’s disrespectful to do it differently.”

Meanwhile, Winnell feels the complete opposite, and has reportedly reached her breaking point with Messer's “childish” demands.

“I absolutely plan on confronting her,” Winnell announced. “The father of my children and the friendship he and I have has nothing to do with that little girl. I have to be involved with him, whether she likes it or not. She’s so unbelievably childish I can’t stand it!”

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