The ex-porn star accusing Diddy of sex trafficking her at his White Parties is likely about to be in need of new legal representation … because the lawyer handling the case is asking a judge to cut her loose.

According to new legal docs, obtained by TMZ, Adria English‘s attorney Ariel Mitchell-Kidd wants to withdraw from the case, claiming Adria is giving her conflicting instructions that make it impossible for her to represent Adria.

Mitchell-Kidd also says there’s been a breakdown in the attorney-client relationship. She claims there are irreconcilable differences between them, and says Adria’s “tone and lack of respect and [her] continued behavior and self-destructive activities” have made it impossible for Mitchell-Kidd to continue representing her.

TMZ broke the story … Adria filed a bombshell lawsuit against Diddy back in July, accusing him of sexual assault and sex trafficking.

Mitchell-Kidd joined us on “TMZ Live” a week after filing the suit, and told us Diddy’s indictment was imminent … and the feds eventually arrested Diddy in September, and threw him in jail.

As we first told you … Adria — a former porn star whose stage name was “Omunique” — filed a police report in Miami in August, detailing many of the same claims against Diddy she laid out in the lawsuit.

Now, Mitchell-Kidd wants a clean break from Adria … and she says the case is still early enough in the process to where Adria won’t be negatively impacted by getting a new attorney.

For his part, Diddy has denied Adria’s allegations.