Demi Moore is nothing if not self-aware. 

The 61-year-old actress, whose fame is having a resurgence thanks to rave reviews of her upcoming film, "The Substance," has a lot to look forward to in life, but admittedly no romantic partner to share it with. 

Married and divorced three times, Moore jokingly pinpointed the exact reason why she's still single in a new interview.

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Demi Moore in a white sleeveless top smiles wide on the carpet

Demi Moore spoke candidly about the reason she's still single. (Kristina Bumphrey/Variety via Getty Images)

Making an appearance on "The Tonight Show with Jimmy Fallon," Moore spoke about a litany of topics, including her adoration for her 1.5 pound dog Pilaf, who, in recent years, has accompanied the star to fashion shows, film festivals and late-night appearances.

"She's a magical creature," Moore raved. "I was told that she was here to teach me a new way to walk, and I think it's working."

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But Fallon reminded Moore that she is the proud mother to a motley crew of dogs, playing an Instagram video of the actress' nine dogs waiting for her to return home. Another photo she posted to Instagram shows seven smaller dogs squeezing into a tiny dog bed, with a larger dog standing above them.

Pilaf is closest to the door, off the bed.

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A photo of Demi Moore's 9 dogs, waiting inside her home

Demi Moore has several dogs waiting for her at home. (Demi Moore Instagram)

"If anybody saw my nighttime routine – if it was filmed – they would really see how eccentric I really am," Moore said, who confirmed that she does sleep with her animals.

"I have to prop pillows so the ones that are this size have the ability to get under the covers. I have two beds for the little ones so that they have the beds within the bed," she detailed.

Demi Moore in a white blouse with a black tie tilts her head and smiles

Demi Moore spoke about her "eccentric" nighttime routine, and how that plays into her single status. (Cole Burston/The Canadian Press via AP)

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"You take care of 'em!" Fallon said.

"Of course! Hence why I'm single," Moore retorted, which elicited a massive giggle from both Fallon and the audience.

"If anybody saw my nighttime routine – if it was filmed – they would really see how eccentric I really am."

— Demi Moore
Demi Moore in a red latex strappy dress looks to her left on the carpet as she smiles

Demi Moore is relishing this time as a grandmother. (Earl Gibson III/Penske Media via Getty Images)

Despite her single status, Moore told Fallon that she has a new "love of her life" in granddaughter Louetta. 

"It's somewhat surreal. But it's incredible. She is the sweetest little thing," Moore said of eldest daughter Rumer Willis' first child.

Demi Moore in a white bikini and hat holds granddaughter Louetta's hands while walking on a dock

Demi Moore and her granddaughter Louetta, pictured this summer. (Rumer Willis Instagram)

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Moore said she doesn't go by "Grandma" but rather "YaYa" – a strategic choice. 

"I positioned it perfectly because I knew that in her verbal skills I would be high on the list. Which I am," she revealed. "YaYa came out quite early."

Moore's movie, "The Substance," will be released on Sept. 18.