Sometimes, bygones will never be bygones.
Sending Brandi Glanville Mother's Day flowers only resulted in another diss as LeAnn Rimes' feud with the reality star shows no signs of abating.
As a peace offering of sorts, Rimes sent The Real Housewives of Beverly Hills star a bouquet last weekend ... only to receive a passive-aggressive reply.
On Twitter, natch.
"I thanked @leannrimes on twitter 4 my flowers," she wrote. "Our relationship is that we still don't even say hi at baseball. I don't have her number. That's it."
To hear LeAnn tell it, she didn't even get that much.
Rimes responded, "This was actually the first acknowledgment of my gesture I was made aware of," she wrote. "I didn't see anything else sent to me."
She also made a cryptic reference to "how twisted" things can get. "It never ceases to amaze me," she tweeted. "As you can see, I don't 'put up' w/ it."
Seems like she puts up with quite a lot, but that's another topic.
Mother's Day, not surprisingly, is a touchy subject for the rivals.
Rimes' involvement in Glanville's sons' lives - she married Brandi's ex, Eddie Cibrian, and his stepmom to their two sons - has long been a sore subject.
"I don't think we'll even be friends, but I hope we can coexist peacefully," Brandi Glanville said of the singer to Access Hollywood earlier this year.
"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."
Whose side are you on in this festering feud?