Bobby Brown sat for a "20/20" interview with Robin Roberts to promote his new book this week. His former mother-in-law, the late Whitney Houston's mom Cissy Houston, isn't impressed.

MORE: Bobby Brown says he once had sex with a ghost in Georgia

Bobby Brown discusses his daughter Bobbi Kristina's death and his new memoir "Every Little Step" with Robin Roberts. Photo ABC/ Rick Rowell

Credit: Jennifer Brett

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Credit: Jennifer Brett

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Bobby Brown outraged at autopsy release 

Bobbi Kristina died almost exactly as her mother Whitney Houston did 

In a statement to People, Houston called the interview "disturbing" and took issue with how much the interview focused on his marriage to her daughter. "He chose to concentrate his comments primarily on Whitney," she said. "I can't help but wonder why."

Bobbi Kristina and her grandmother Cissy Houston in a promotional photo for the Lifetime show the family appeared in for one season after Whitney Houston's death. Credit: Lifetime

Credit: Jennifer Brett

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Credit: Jennifer Brett

The interview touched on Brown’s many brushes with the law as his wife rocketed to international stardom, then the couple’s joint drug use. Although he said both he and Whitney developed a daily drug habit, he said he was assiduous in trying to block little Bobbi Kristina from it. She was cared for by nannies while Bobby and Whitney would shut themselves off in a wing of their house to indulge their habits.

“I always made it a point to not let (Bobbi Kristina) see me or my wife in that type of situation,” he said.

The last few years of their marriage were “a big struggle” in terms of their drug use, he said. It took going to jail for him to clean up for good, he said.

Brown said he hadn’t touched narcotics in 10 to 12 years but that he still drinks some.

He acknowledged striking his former wife on one occasion but said he was not abusive. Ultimately, it was her refusal to quit drugs that dissolved their 14-year marriage, he said.

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