It’s hard to imagine that there’s anyone who doesn’t like Betty White. The Mary Tyler Moore Show, The Golden Girls, and Hot in Cleveland all featured the television legend, who died on Dec. 31 just shy of her 100th birthday. She was also a passionate animal rights activist who urged other celebrities to utilize their status to help others. White was well regarded and adored by fans and friends alike, thanks to her tremendous on- and off-screen résumé. That isn’t to say she didn’t have conflicts—on one of her most famous episodes, White had a spat with another actress, Bea Arthur, on set. For a strange reason, White enraged her co-star.

More interviews have been revealed after The Golden Girls ended in 1992, revealing an ongoing schism between the actresses in real life. The two played Rose Nylund and Dorothy Zbornak, respectively.

During a 2011 CNN interview with Joy Behar, White stated that she got along with everyone in the cast of The Golden Girls. She does concede, though, that Bea Arthur disliked her. “Bea was not that fond of me,” said White. “I don’t know what I ever did, but she was not that thrilled with me. But I loved Bea, and I admired her.”

According to OK! Magazine, White’s cheerfulness and friendliness irritated Arthur. “Betty is Ms. Sunshine,” a friend of White’s confessed, “and it drew the cast and crew to her. Bea thought it was an act—she would barely give Betty the time of day

During an HLN interview with Joy Behar in 2011, White addressed the issue.

White stated of Arthur, “She was not that fond of me. She found me a pain in the neck sometimes. It was my positive attitude—and that made Bea mad sometimes. Sometimes if I was happy, she’d be furious!”

The fact that White and Arthur didn’t always get along was no secret. Rue McClanahan noted in a 2009 interview with Greg Hernandez that she felt the antagonism stemmed from her co-stars’ diverse origins, but Arthur never revealed the actual basis of the enmity to her. “They approached life very differently,” McClanahan recalled. “Bea came from a New York stage point of view. She always had what we call the fourth wall. And Betty came from a television point of view. She would flirt with the audience, and pull her skirt up and say, ‘Hi sailor.’ But Bea never acknowledged the audience. I always thought that was maybe part of it. But Bea never confided in me why she felt the way she did about Betty.”

Aside from opposing viewpoints, the tension might also be attributable to conflicting performing approaches. Arthur relied on her stage play background throughout filming, according to Jim Colucci, author of Golden Girls Forever: An Unauthorized Biography, where she always kept in character. Between takes, White, on the other hand, was more relaxed, chatting and laughing with the live crowd. Arthur, according to reports, wasn’t a huge fan of her breaking character.

“Sometimes Betty would go out and smile and chat with the audience and literally go and make friends with the audience. Which is a nice thing—a lot of them have come from all over the country and are fans,” Saks told The Hollywood Reporter. “I think my mom didn’t dig that. It’s more about being focused or conserving your energy. It’s just not the right time to talk to fans between takes. Betty was able to do it and it didn’t seem to affect her. But it rubbed my mom the wrong way.”

Nonetheless, it was all one-sided: “Betty was a big fan of Bea. Bea’s feelings about Betty were not mutual. She really did love Bea,” McClanahan shared in the 2009 interview.