LeAnn Rimes Feud with RHOBH's Brandi Glanville Intensifies on Twitter: Songstress Sends Flowers for Mother's Day, Eddie Cibrian's Ex Fires Back with Harsh Tweet

"RHOBH" starlet Brandi Glanville's bitter feud with country songstress LeAnn Rimes never seems to end! Yes, the Grammy award winner did basically "steal" Glanville's ex-hubby, Eddie Cibrian... but that was years ago! Rimes tried to extend a peace offering on Mother's Day by sending the Bravo beauty some flowers... but that basically backfired. Glanville hit up Twitter to bash Rimes' "gift" - and the (passively-aggressive) harsh tweet has since gone viral on the web!

The 30-year-old songstress is now stepmother to Glanville's two young sons Mason and Jake... which only adds hostile fuel to the frenemies' fire. But apparently Rimes is ready to end the bad blood - she even sent the 40-year-old reality starlet a bouquet of flowers on Sunday (May 12) for Mother's Day. And Glanville's reaction...

@BrandiGlanville: "I thanked @leannrimes on twitter4 my flowers.Our relationship is that we still dont even say hi at baseball.I dont have her number-thats it."

When a fellow Twitter follower brought Glanville's response to Rimes' attention, she wrote - "This was actually the first acknowledgment of my gesture I was made aware of... I didn't see anything else sent to me."

She then went on to tweet these rather cryptic messages:

@leannrimes: "It never ceases to amaze me."

And in response to another fan's "how do you put up with it" tweet Rimes answered - "As you can see, I don't 'put up' w/ it."

Earlier this year, Glanville admitted to Access Hollywood, "I don't think we'll be friends, but I hope we can co-exist peacefully... Once she has a child of her own, I think she will understand boundaries and what's respectful to do and how to handle things a little better."

Are fans getting tired of the ongoing Rimes-Glanville feud?