Richards, who is now in rehab, sat down with Dr. Phil McGraw for an interview airing Tuesday

By Michele Corriston
April 27, 2015 05:55 PM
Peteski Productions/CBS Television Distribution

Days after Kim Richards entered rehab, details of the night that led to the reality star’s arrest are coming to light.

In a new preview for the Real Housewives of Beverly Hills personality’s interview on Dr. Phil, Richards explains that she drank a glass full of about 2 in. of liquor before getting behind the wheel April 16.

“I pulled in [to the Beverly Hills Hotel] because I’m comfortable there, I’ve been going there since I’m a little girl,” she says in the clip. “The bar was closed. It was empty.”

Officers arrested Richards, 50, at the hotel after she started displaying “belligerent insolent behavior,” according to a statement from police.

“Were you loud, were you obnoxious, were you crazy?” Phil McGraw asks her.

We’ll have to wait until the segment airs Tuesday to find out, but a source previously told PEOPLE that the former child actress has been in denial about her substance abuse. (Questions about her sobriety dominated the latest season of RHOBH.)

“Kim went to rehab finally because she got arrested, she humiliated her kids and she wants to avoid jail,” the source said. “If the arrest hadn’t happened, she wouldn’t be going to rehab; it would be business as usual.”