Stephen "tWitch" Boss' Brother & Friend Slam Allison Holker's Tell-All

But after seeing Allison's Jan. 7 interview with People, the fitness trainer wrote, "This is by far the most tacky, classless, opportunistic act I have ever seen in my entire life," alleging that Stephen's loved ones "had to sign some weird NDA to attend his funeral," and saying Allison has treated Stephen's mother "like garbage this entire time."

Courtney also took issue with the stories Allison has mentioned will be in her memoir, saying that the book airs their "dirty laundry" and smears Stephen's name by "attempting to dim the bright loyal, loving, light that was your husband, my friend."

"You're a living, breathing bulldozer. Stick to your own demons. Shame on you Allison, shame on your money hungry team," Courtney said. "Let my friend Rest in Peace not your PR."

And Courtney wasn't alone in her feelings, as Dré shared her post to his own Instagram Stories, adding, "No lies told…"

He also reposted an Instagram Story by Katie Paulson, who called Allison "a disgrace and despicable human to do this to a grieving family."

E! News has reached out to Allison's rep for comment but has not heard back.

In the years since Stephen's death, Dré has been vocal on his social platforms about the difficulties he and his family have faced, even sharing an Instagram post in August 2023 in which he discussed the NDAs the the family says they were asked to sign.

While he did not mention Allison by name in the post, he did make mention of his nieces and nephews, writing, "It's deeply concerning to notice how my deceased brother's children have been drawn into the complexities of adult disputes, effectively being weaponized in the process."

"We have noticed a disturbing lack of communication and inclusion concerning the children's activities and well-being," he continued. "It's disheartening that their interactions with their grandmother, and the wider family, have been noticeably limited."

As for Allison, the So You Think You Can Dance alum has not addressed the allegations publicly, instead focused on her book coming out Feb. 4 and her own memories of Stephen.

"I've been so fortunate to have resources that have helped me that I've now teamed up with," she told People. "I've learned there's so many other resources that a lot of people don't know about. I've had so many people reach out to me needing to talk, and if I've learned anything, I've learned that mental health can impact anyone at any time of their life."

For look back at Stephen and Allison's family life, keep reading.