LeAnn Rimes has just been called out by her husband’s ex-wife, Brandi Glanville.

On July 21, LeAnn Rimes took to Instagram — she shared a photo of herself, Eddie Cibrian, and his son with Glanville, Jake — claiming Cibrian’s second son, Mason, was acting older than he was — and being “anti-social.”

“Tent tumbling @tentsile got these boys making me laugh and keeping the sadness at bay #sickmom #family our 4th member is 12 going on 16 and anti social today lol #lovethemallsomuch.”

After seeing LeAnn Rimes’ message, Glanville took to Twitter, where she confirmed her son was 12, not “12 going on 16,” and slammed Rimes for labeling her son.

@leannrimes Mason is actually 12. I gave birth to him June 2,2003 he is ANYTHING but anti-social sorry that ur mom is ill but stop labeling! — Brandi Glanville (@BrandiGlanville) July 22, 2015

Glanville then shared a second tweet, in which she was clearly misinformed, believing Mason didn’t want to get on a trampoline, when in fact LeAnn Rimes and her family was in a tent.

It’s hard to bounce on a trampoline with a cast on &it doesn’t make u anti-social especially when u broke your arm on that very trampoline — Brandi Glanville (@BrandiGlanville) July 22, 2015

LeAnn Rimes and Glanville have been at odds online more than once, but this latest Twitter diss by Glanville marks the first in a while. Immediately following LeAnn Rimes’ highly publicized affair with Glanville’s then-husband, Cibrian, in 2009, the two women were feuding constantly, both online and in the press. Understandably, Glanville was furious with the country singer, who was also married at the time of the affair. Years later, however, after Leann Rimes married Cibrian, the women attempted to settle their differences for the sake of Glanville and Cibrian’s two sons. As the Inquisitr previously reported, things between LeAnn Rimes and Glanville were going well just months ago. During an interview with In Touch Weekly in April, Glanville admitted her relationship with LeAnn Rimes is up and down, but said they were “OK” at the moment.

“Things are currently going OK! It’s really nice and very weird because the tide has been smooth for a little while now. It worries me that something crazy’s about to happen because usually it ebbs and flows. I hope it continues to stay cool like this.”

The following month, ironically, Glanville demanded her fans and followers not to bash LeAnn Rimes on Twitter.

PLEASE No more bashing of @EddieCibrian or @leannrimes on my time line- I will unfollow these people if I follow them at all.-#4mykids on&up — Brandi Glanville (@BrandiGlanville) May 20, 2015

LeAnn Rimes has yet to comment on Glanville’s Twitter diss.

[Photo via Instagram]