Cyrus, 21, and Hemsworth, 24, have been separated since September 2013, reported Hollywood Life.
"Miley was trying to get a rise out of Liam. She misses him. There's a part of her that wants to get back together," a source said.
Hemsworth apparently does not want to reconcile with her.
"He wants to stay clear of her drama. He's been dating around," the source added.