Leah Messer is reportedly house hunting with new boyfriend Theodore "T.R." Dues -- and his ex-girlfriend, the mother of his two children, isn't happy about it.

Leah Messer Is Home From Rehab

During a new interview, a woman named Mandy addressed the recent news of Messer and Dues moving in together.

“I did tell her tho to keep her distance from my boys and stay the hell out of my house!” Mandy told The Ashley's Reality Roundup on Monday. “I hope she knows what she’s doing with him because I’m not far behind. I’ll always be around and I’m not really nice…I do not care for her at all.”

Leah Messer Is Staying Positive After Rehab

According to the site, Messer began dating Dues in early May after hiring him as her personal trainer. The relationship, which has yet to be confirmed by Messer, came just months after the Teen Mom 2 star split from her husband of three years, Jeremy Calvert.

As fans will recall, Calvert accused Messer of cheating on him with Robbie Kidd in October of last year and filed for divorce a month later.

Mandy, who claimed Dues was a "good guy" and "great father," went on to express her surprise in Dues' relationship with Messer.

“Leah isn’t really his type in my experience. He’s never dated a country girl,” she said.

Teen Mom 2 returns to MTV for season six on July 9 at 10 p.m. on MTV.

Tags: leah messer theodore dues Teen Mom 2 MTV Reality TV