Nick Gordon, boyfriend of comatose music scion Bobbi Kristina Brown, became highly emotional in an interview with TV psychologist Dr. Phil McGraw scheduled to air Wednesday.

"I miss Krissy and Whitney so much! . . . I want them back!" Gordon sobs in a promotional video for the "Dr. Phil" interview, taped last week with him and his mother, Michelle. Brown is the daughter of singer Bobby Brown and the late pop star Whitney Houston. "I hate Bobby Brown," Gordon says later in the 30-second clips. At one point in the video, he says to McGraw: "Get to the point; I'm getting frustrated."

The interview becomes an intervention, with McGraw asking Gordon, "You've been drinking a lot though, right?" After McGraw goes on to say, "I want you to go straight to rehab," Gordon declares, "I'm done with the interview. . . . I'm done. I'm done."

McGraw earlier in the clip tells Gordon's mother, "Your son, left to his own devices, will be dead inside a week."

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Gordon did go into rehab, an unnamed Gordon family member told ABC News on Friday.

Bobbi Kristina Brown, 22, who was found unresponsive in her town house in Roswell, Georgia, on Jan. 31, remains hospitalized in a medically induced coma. A criminal investigation into the incident is ongoing.