As readers know, the "Wrecking Ball" singer, 25, recently moved out of the Malibu mansion that she once shared with hunky actor Hemsworth, 28.
Now, a source has revealed more on the estranged lovers splitting apart.
An insider says Cyrus has been spending more and more time at her parents' Billy Ray and Tish's house instead of the Malibu love nest she used to share with Hemsworth.
"Miley said she needed some space," the source dished. "She and Liam aren't on the best terms."
The two have had an on-again, off-again relationship, ending their first engagement in 2013 but getting back together in 2016. Back then, it was assumed that the wedding plans were back on again!
But the source said they're now arguing over when to start a family.
"Liam wants to get married and have kids, while Miley just isn't quite ready yet," the insider noted.
"He's thinking of giving her an ultimatum, but their friends don't think that Miley will cave."
As RadarOnline.com previously revealed, Hemsworth has been looking at homes next to his brother Chris' place in Byron Bay, Australia, while Cyrus took her wacky toys and other possessions and moved out of the Malibu estate they had shared.
While Hemsworth owns the $6.8 million Malibu home, Cyrus had bought the ranch next door for $2.5 million.
- Miley Cyrus Obtains 3-Year Restraining Order Against Fan With 'Dangerous Obsession'
- ‘Dangerous Obsession’: Miley Cyrus’ Alleged Stalker Arrested After Showing Up to Pop Star’s LA Home for 4th Time, Being Held Without Bond
- 'Hoping for a Miracle': Miley Cyrus Desperately 'Trying to Talk' Billy Ray Cyrus Out of Marrying Firerose
We pay for juicy info! Do you have a story for RadarOnline.com? Email us at firstname.lastname@example.org, or call us at (866) ON-RADAR (667-2327) any time, day or night.
Get the exclusive celebrity scoop on all the stars you love before any of your friends by subscribing to our new podcast Straight Shuter below!