On Thursday, Dodd, 45, shared several screenshots on Instagram from an alleged text exchange she had with Windham-Burke, 43, after news of their exit from the franchise broke. Checking in on Dodd, Windham-Burke wrote: "I hope you're okay, I know we've been through hell and back but I'm here."
In response, Dodd told her former costar it was her "fault" they are no longer on the show before listing the reasons she believes they were let go.
"This was your fault. We'd still be on the show if you didn't make things so dark and ugly and brought all that political 'woke' BS," Dodd wrote, according to the screenshots. "Your lies about me, calling me a racist and a homophobe were horribly destructive and your phony storylines didn't help either."
In the post's caption, Dodd called out Windham-Burke for having "the audacity" to text her. "She went on a podcast. She said she was fired from the show because we all didn't like her because she's gay," she wrote.
"Not because she's a horrible person. Not because she treated everyone like shit and made no effort to be friends with us," she continued. "Not because she went on a press tour and made horrible accusations about us calling all of us homophobes and racist, Not because she's a terrible mother. Not because she's a horrible person to her husband. The only reason she was fired is because she is gay. What a f------ nut job classic narcissist!"
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Windham-Burke told Page Six that "only Kelly Dodd would post screenshots of her own texts that make her look wildly immature." She also claimed that Dodd cut out a portion of Windham-Burke's text response where she said, "I wish you nothing but the best and hope you have a beautiful life."
Bravo did not immediately return PEOPLE's request for comment.
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Charles Sykes/Bravo/NBCU Photo Bank via Getty; Tibrina Hobson/Getty Kelly Dodd, Braunwyn Windham-Burke
The following day, Dodd - who first appeared on RHOC in season 11 in 2016 - tweeted out a message of appreciation for her time on the long-running show. "The last five years have been an amazing experience," she wrote on Wednesday. "The next five years will be even better. I am so grateful for all the love and support and so excited about the future ❤️🍊 #RHOC."
Windham-Burke said in an exclusive statement to PEOPLE that she's "incredibly sad" to be ending her journey on the Bravo hit.
"I loved every moment of being a Housewife, and am so proud of my time on the show - the good, the bad, and the in-between. It feels revolutionary to say, but I was able to get sober and stay sober on reality TV," the reality star, who joined the show in 2019, said.
"That something for which I will forever be grateful. And I came out, becoming the first gay Housewife in the franchise's history. What an incredible honor to look back upon, especially during Pride Month," she continued. "I know I may have been too much for some, and that's okay. I am real, and I am happy being me. I'm so grateful to those who have stood by me. There is a lot more to my life, and I hope you'll stick with me on this journey as I move forward in my next chapter."
Meanwhile, Heather Dubrow, who appeared on the series from 2012 to 2016 before exiting in 2017, is rejoining the franchise. Dubrow will star appear alongside Gina Kirschenheiter, Emily Simpson and Shannon Beador.