Grammy-winning rapper Cardi B has been forced to cancel her scheduled appearance at ONE MusicFest due to a medical emergency, amid an intensifying public dispute with estranged husband Offset that has spilled onto social media.

The 32-year-old artist announced her withdrawal from the festival through an Instagram statement on Wednesday, revealing she has been hospitalized since October 19. "It breaks my heart that I won't get to see my fans this weekend," she wrote, promising to return "better and stronger soon."

The medical setback comes on the heels of a series of now-deleted posts on X (formerly Twitter) where Cardi B unleashed a scathing critique of Offset, her husband of six years. "Bro I wish the worst on this man... I never hated somebody soooo much," she wrote in one of several explosive messages that have since been removed from the platform.

A source close to the situation told PEOPLE that the relationship remains strained despite Cardi's previous attempts at reconciliation. "Cardi tries very hard for things to be amicable with Offset. She's forgiven him so much in the past because she wants the best for their kids," the insider revealed, adding that "she's furious with Offset again."

The public outburst follows a disturbing incident where Child Protective Services conducted a late-night visit to Cardi's home following what she claims was a prank call. While she explicitly cleared Offset of involvement in the CPS incident, she announced plans to pursue legal action against both the agency and the anonymous caller.

The couple's tumultuous relationship has been marked by multiple separations and reconciliations since their 2017 marriage. Cardi first filed for divorce in September 2020 before reconciling, only to file again in July 2023. Despite the ongoing divorce proceedings, the couple welcomed their third child, a daughter, in September, joining siblings Kulture, 6, and Wave, 3.

The timing of this latest controversy coincides with reports of Offset being spotted with a Cardi B lookalike at Toronto's Mademoiselle Raw Bar + Grill, though this incident wasn't directly addressed in Cardi's social media posts. When fans attempted to remind her of Offset's role as father to their children, Cardi maintained her position while clarifying she doesn't wish death upon him.

"She's a great mom and this is her focus," the PEOPLE source emphasized, highlighting Cardi's dedication to her children despite the personal turmoil. The rapper has been particularly protective of her family, especially following the recent CPS incident, stating during an Instagram Live session, "Motherf---ers have taken s--- too f---ing far when you mess with my f---ing kids."

Representatives for both Cardi B and Offset have not responded to requests for comment, leaving questions about the specific nature of Cardi's medical emergency and the future of their relationship unanswered. The situation continues to develop as both artists maintain their high-profile careers while navigating their personal challenges.