Cyrus got negative publicity after she was seen twerking and flirting with singer Robin Thicke on the stage at MTV Video Music Awards.
"Liam really does care about Miley, but her racy new look and sort of ghetto attitude isn't exactly what he signed up for," showbizspy.com quoted a source as saying.
"Her VMA performance absolutely mortified him and he couldn't be more embarrassed. He doesn't really see anything sexy about what she did on stage," the source said.
Hemsworth's friends have reportedly suggested him to part ways with Cyrus.
"It's not just Liam that Miley is pushing away...his entire team is urging him to part ways with her because she's nothing but negative for his reputation and career," said a source.
"Liam is a serious actor with a growing career, while Miley has just turned into a joke. It's pretty much over. He knows he can't stay with her when this is who she's become. He doesn't want to babysit her anymore. He has to move on," the source added.
The couple has been engaged for over a year.
--IANS (Posted on 31-08-2013)