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In a Tuesday Instagram Live, Dodd, 45, told fans that she "cannot film with" Windham-Burke, whom she clashed with throughout season 15.
"I know I cannot film with Braunwyn," she said in the Live, which was captured by a fan account. "I know for a fact that I cannot film with her. There's just no way and if she comes back then I'm out because I know for a fact that I cannot. She's dangerous and calling people racists and homophobic."
A rep for Bravo tells PEOPLE the network has not made any casting decisions for next season.
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In her Instagram Live, Dodd discussed Windham-Burke's criticisms of her, including that she's "a bad mom" and has traveled during the COVID-19 pandemic.
RELATED VIDEO: RHOC's Kelly Leventhal Says Braunwyn Doesn't 'Take Any Accountability' for Her Actions
RHOC's Kelly Leventhal Says Braunwyn Doesn't 'Take Any Accountability' for Her Actions
Catch the second part of 'The Real Housewives of Orange County' reunion on Wednesday at 9 p.m. ET on Bravo
"And … saying I'm a bad mom, I'm running around, like, traveling, well I was traveling, yes, but I was also selling two homes. And thank God I did because I'd be stuck with four mortgages, right?" Dodd said, before referring to Windham-Burke's trip to Utah in September to see some members of the other Real Housewives franchises.
"I wasn't going to party it up with the Salt Lake City chicks," she added.
"If I'm coming back next year, I just can't come back next year filming with somebody so reckless," Dodd concluded. "I just can't. If she's on, I'm probably out. So, that's probably the way it goes. And by the way, she says she couldn't film with me, so there you go."
Part two of The Real Housewives of Orange County season 15 reunion airs Wednesday at 9 p.m. ET on Bravo.