EXCLUSIVE: Kim Richards on New Determination to Stay Sober: 'Relapsing Was Very Hard For Me'

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After her buzzed-about relapse, Kim Richards is determined to stay on the straight and narrow with lots of help from her friends.

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"I love sobriety, and I've always loved sobriety," Richards told ET during an exclusive sit-down interview. "Relapsing was very hard for me."

The reality star had entered rehab for the fourth time earlier this year after being arrested on April 16 at the Beverly Hills Hotel, following an incident. The Beverly Hills Police Department told ET at the time that Richards was acting belligerent and locked herself in a bathroom. Once taken into custody, she reportedly kicked a police officer in the leg and was later charged with public intoxication, trespassing, resisting arrest and battery of a police officer.

While Richards is not in rehab right now, she is being treated by an extensive team, including her psychiatrist, life coach, sponsor, acupuncturist, trainer and chiropractor, who are all working to keep her sober.

EXCLUSIVE: Kim Richards Opens Up About Her Arrest and Struggles With Alcohol: 'I've Always Loved Sobriety'

In fact, Richards was so committed to recovery that she missed her niece Nicki Hilton's lavish London wedding to banking heir James Rothschild earlier this month.

"I was supposed to go to Nicki's wedding, and I decided to stay in treatment to finish off a little bit of time," Richards said.

Richards' children were a big reason for why she got back on the wagon after her run-in with the law in April. She could hear the concern in their voices when she broke the news of her arrest.

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"My heart ached for my children," Richards said. "I felt terrible and I didn't know how to tell them. I think the phone rang and it was Brooke, and I said, 'Hello,' and she said, 'Hi, so you got arrested?' I said, 'Yeah,' and she said, 'I'm just glad you're OK, Mommy. I love you.'"

Richards didn't feel as loved on Dr.Phil when she stormed out of an interview that included three of her children. Watch the video to find out if Richards regrets walking away from the sit-down.