Brandi Glanville wants her sons to be supervised around LeAnn Rimes.
The Real Housewives of Beverly Hills star shares boys Mason, nine, and Jake, five, with ex-husband Eddie Cibrian, who pursued a relationship with LeAnn after Brandi left him.
LeAnn and Eddie married in 2011 and turmoil has riddled the women's relationship ever since.
In a newly-released interview with UsWeekly, Brandi accuses the country singer of being "unstable" and says she fears for her sons' safety.
"I see this ending badly - I see someone getting hurt," she said.
"She's not healthy. And until she's healthy, I don't want her around my children by herself."
Brandi acknowledged that Mason and Jake love LeAnn.
But she's concerned about them being alone with her when Eddie isn't around.
"These are my children and I don't want this unstable person around them when she's alone," Brandi said.
The television star, 40, is also suspicious of LeAnn's motives.
"She uses my children as a tool to get to me, and I don't know if she cares about them the way that Eddie thinks she does," Brandi said.
Eddie earlier defended LeAnn to UsWeekly. He accused Brandi of playing out their family drama to propel her television career.
"My wife, LeAnn, continues to be a loving and positive influence on the lives of my sons. They are without a doubt lucky to have her," he told the publication.
A spokesperson for LeAnn also blasted Brandi's accusations, including one claim nine-year-old Mason got "extremely ill" after eating one of the singer's laxatives.
"Just more inaccuracies and half-truths," he told Entertainment Tonight.
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