Celebrity Miley Cyrus Is Shocked that Liam Hemsworth Is Already Moving On "She knows Liam has been seeing Eiza and it's been hard for her," a source close to the singer tells PEOPLE By Mary Margaret Published on September 20, 2013 11:30 AM Share Tweet Pin Email Photo: TGB/Splash News Online Miley Cyrus is 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, tells PEOPLE. “She can’t believe he moved on so fast and so publicly.” One day after it was announced that Cyrus and Hemsworth’s engagement was over, he was spotted in a passionate lip-lock with Gonzalez. Gonzalez and Hemsworth, both 23, met in Las Vegas last weekend. They were spotted together two nights in a row. On Thursday, Gonzalez dodged questions about Hemsworth while in Mexico promoting the Spanish-language DVD release of The Croods, for which she did a Spanish voiceover. (Hemsworth was in Atlanta, where he’s shooting the next installment of The Hunger Games). Asked if the handsome, newly single actor was one of the charms of L.A. (Gonzalez moved there a month and a half ago), she said, “Los Angeles is a city that energizes me. The city is constantly growing and has a great movie culture. Right now, my job is my happiness and I am very happy.” Later, when asked if she felt attacked by the paparazzi due to her outings with Hemsworth, she said, “I didn’t feel attacked at all.” Meet Liam Hemsworth’s Post-Miley Kissing Partner “Today I am here on this job and I am happy,” she continued. “I have nothing to say about that matter.” This weekend it will be Cyrus’s turn to hit Las Vegas, where she’s performing at the iHeartRadio Music Festival.