05/14/2012 01:44 pm ET

Brandi Glanville: 'I Really Thought I Was Going To Kill' LeAnn Rimes

"Real Housewives of Beverly Hills" cast member Brandi Glanville isn't afraid to admit just how angry she once was with the woman for whom her husband left her.

The 39-year-old reality star opened up to Australia's NW HQ magazine, revealing she once even felt like killing ex-husband Eddie Cibrian's new wife LeAnn Rimes after the singer showed up at Glanville's son's soccer practices, reports RadarOnline.

"I remember walking up to soccer practice and there she was with my baby in her lap," Glanville, who has two sons with Eddie, told the magazine. "My blood was boiling, and I thought I was going to kill her. I really thought I was going to physically hurt her.

Glanville reveals that just seeing Rimes sitting with her family, taking what was once her place, created a "little moment of total irrational fury."

Cibrian left Brandi in 2009 after hitting it off with Rimes on the set of their film "Northern Lights," and the two have now been married for just over a year. And with time, Glanville admits she doesn't feel quite so much hostility toward Rimes anymore.

"We're never going to be best friends, but she's good to my kids, they love her and that's all I could ask for," she told the magazine. "If they didn't like her, I'd be in court right now, fighting. It's not about me -- it's about them."

Glanville's admission that she was once so angry she could kill isn't that shocking given some of the things she's said about her ex-husband and his new wife.

"[Cibrian] will be with [Rimes] until he cheats again," Glanville told The Huffington Post in January. "They won't be together forever."

In that same interview, Glanville also brought up that tension-filled soccer incident, but tried to play it off as nothing.

"It was my son's last soccer game and [Rimes] was there," she said. "Everyone is making a big deal of it because of the picture [which shows the ladies ignoring each other], but this has gone on for two-and-a-half years. So, for me, I really don't put too much energy into it because it will eat you alive."

But even if things have cooled down, Glanville seemingly continues to enjoy believing that Rimes and Cibrian's marriage won't last -- telling magazine that she's glad to hear rumors that the couple didn't sign a prenuptial agreement, as she's happy her sons will have financial security regardless of whether their father is still with Rimes or not.

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