Bobby Brown Says Whitney Houston Did Cocaine on Their Wedding Day, Claims He Had Sex With a Ghost

Bobby Brown recalls the first time he saw Whitney Houston partake in drugs.

WATCH: Bobby Brown Reveals How He's Able to Carry on After Bobbi Kristina's Death -- 'I Have Another Angel'

In a sit-down interview with Robin Roberts for 20/20, airing in its entirety on Tuesday night on ABC, Brown says Houston offered him cocaine before the two tied the knot in the backyard of Houston's New Jersey mansion in 1992. However, Brown says he did not partake. In his new book, Every Little Step: My Story, Brown claims that he found Houston "hunched over a bureau, snorting a line of coke."

"She did drugs, but drugs didn’t do her. She knew how to handle herself," Brown tells Roberts. "It only made me, you know, love and want to protect her more at the time."

The former New Edition singer also insists that he is not responsible for his ex-wife's drug habit. "It wasn't me that started her," he says. "I take my part and I take it hard for me even being a part of it. We all have our own minds and some of us are stronger than others."

EXCLUSIVE: Whitney Houston Hologram Creator Defends Canceled Christina Aguilera Duet, Says The Voice Audience Was 'Crying'

Brown adds that he and Houston were careful not to let their daughter Bobbi Kristina Brown -- who died on July 26, 2015, after being found unresponsive in a bathtub six months earlier with drugs in her system -- see them doing hard drugs. "I always made a point to not let her see me or my wife in that type of situation, in that type of feeling,” he says. "It’s hard when, you know, you’re doing it every day."

Brown tells Roberts that despite his and Houston's differences -- they divorced in 2007 -- he still thinks about his ex-wife fondly. "I was deeply in love with her," he says. "For the rest of my life, I think I will have that feeling towards her because she was that one person that knew me, that one person that had no judgment."

WATCH: Bobby Brown Opens Up About Nick Gordon and His Suspicions Surrounding Bobbi Kristina and Whitney Houston's Deaths

On Feb. 11, 2012, Houston was found dead in a hotel room bathtub at the Beverly Hilton. She was 48.

Brown also shares bizarre revelation with Roberts. The 47-year-old singer believes that he had sex with a ghost. "I bought this mansion in Georgia, this was a really, really spooky place," he recounts. "But yes, one time, I woke up, and yeah, a ghost. I was being mounted by a ghost. I wasn't high... I was not trippin'."

WATCH: Bobby Brown Breaks Down Talking About Daughter Bobbi Kristina's Death -- 'My Baby's Gone'

Related Gallery

Whitney Houston In Photos