Brielle Biermann Accused of Having “Inappropriate” Relationship With Man With Girlfriend & Receiving Money From Him Amid Her Engagement to Billy Seidl

Brielle Biermann is being accused of receiving hundreds of dollars from a man with a girlfriend — and of carrying out an “inappropriate” relationship with him amid her engagement to baseball player Billy Seidl.

Less than a year after getting engaged to Billy, 24, the 27-year-old Don’t Be Tardy alum and daughter of Real Housewives of Atlanta‘s Kim Zolciak was blasted on TikTok by a woman claiming to have been dating the mystery man.

“Ever been halfway through a Bahamas trip, but catching the next flight out because you found out he’s flying some girl named Katie in as soon as you leave — AND has been cashappin’ a broke D-list housewife’s daughter for drink money? Yeah, me neither,” the person, Calli Berry, stated in one of a series of posts.

Then, in the comments section, after a fan guessed she was referring to Brielle, Calli replied, “lol what gave it away? Broke?”

“Is this $20 for drinks? This seems so odd,” another commenter wrote, prompting Calli to reveal it was “$300.”

After sharing the initial post, Calli returned to her TikTok page with a video about her Bahamas drama.

“He was there before me and he’ll be there long after I leave. This is not some fun-filled trip on the beach with a Pina Colada vacation. It is way deeper than that and I’m here to help someone who’s going through a really bad time in their lives,” she explained.

“I wake up this morning … And some information just falls right into my lap. Not only did I find out that when I leave, the week of the 11th, he is flying Katie out in place of me. So I guess just a revolving door of women coming to see him,” shared Calli. “Not only that. I find out that he’s been sending money to the [housewife’s] engaged daughter for drinks for her and her mom on him because she asked him to send it.”

Replying to @Christina Garcia lemonade was made #storytime #realhousewivesofatlanta #rhoa

♬ original sound – Calli Berry

In a third post, Calli continued to explain the situation as she noted that her claims against Brielle were “alleged.”

“Two people were friends before I ever met the person that I was dating. I knew him, and I just happened to be around her sometimes. After a few weeks, I realized the friendship was, like, inappropriate in my opinion, and very one-sided and not equal and reciprocal,” she shared, not naming Brielle in the clip.

After going to her boyfriend with her thoughts, Calli described their supposed relationship as “borderline inappropriate,” and she noted that her then-partner was “being taken advantage of.”

“I asked for a few of the things to, like, stop. You don’t need to be picking anybody up from the airport. You don’t need to be running their errands. You don’t need to be doing any extra over-the-top favors for someone if you’re not even doing that for your own girlfriend,” she reasoned. “I ultimately requested for it to be done. If you can’t respect boundaries and you can’t respect our relationship, then you gotta call it.”

But after seemingly shutting down the relationship, Calli learned that her efforts had failed.

“To go to another country to support your boyfriend at a time in his life when he needs support to find out not only they’ve been talking every single day, but he’s sending her money, that’s not okay,” she stated.

“There’s so much more to tell,” she then added, proceeding to seemingly joke about her “fake” story.

the bunkbed is a paid actor. #rhoa #cheaters

♬ original sound – Calli Berry

While the name of Calli’s boyfriend was not revealed in her videos, a photo of him with Brielle was shared by Real Moms of Bravo on Instagram.

Brielle Biermann was featured on eight seasons of Don’t Be Tardy, until the series was canceled in May 2021.