It's not really fashionable these days to have any pity for Miley Cyrus, but People magazine's reporting that she's only too aware of her former fiancé Liam Hemsworth's PDA with Mexican singer-actress Eiza Gonzalez. And she's not happy.

"She knows Liam has been seeing Eiza and it's been hard for her," a source close to the singer, 20, told People.com. "She can't believe he moved on so fast and so publicly."

The cad! Oh, wait a minute, we're not supposed to feel bad, are we?

A day after the Cyrus/Hemsworth bust-up went public, he was spotted smooching with Gonzalez. The two met up in Las Vegas last weekend and were spotted together two nights in a row.

In this June 27, 2012 file photo, actor Liam Hemsworth and Miley Cyrus attend the 8th Annual Breakthrough Awards in Los Angeles. Cyrus is said to be upset
In this June 27, 2012 file photo, actor Liam Hemsworth and Miley Cyrus attend the 8th Annual Breakthrough Awards in Los Angeles. Cyrus is said to be upset that Hemsworth has moved on so soon after their breakup. (Photo by Chris Pizzello/Invision/AP, File) ( Chris Pizzello )

On Thursday, Gonzalez dodged questions about Hemsworth while in Mexico promoting the Spanish-language DVD release of "The Croods" (Hemsworth was in Atlanta, where he's shooting the next installment of "The Hunger Games").

"Today I am here on this job and I am happy," she said. "I have nothing to say about that matter."

She looks to have a good career ahead of her as a politician.

This weekend Cyrus's will be in Las Vegas to perform at the iHeartRadio Music Festival.