Victoria's Secret model Vyalitsyna announced the end of her and Levine's two-year relationship last week.
She said in a press release: "Adam and I have decided to separate in an amicable and supportive manner. We still love and respect each other as friends. I wish him all the best."
A friend of Levine has now claimed that the Voice coach was not expecting a public confirmation of the split, which was apparently the result of his reluctance to propose to Vyalitsyna.
"It was a cheap shot… Anne didn't want it to look like he broke up with her," a source told Us Weekly.
"Adam's heartbroken. He wasn't even fully sure they were really broken up."
Vyalitsyna and Levine began dating in 2010 after meeting at a Sports Illustrated party in Las Vegas.
Jennifer Love Hewitt publicly campaigned for a date with Levine when news of his split broke.
"I just read two days ago that Adam Levine is single again... I'm just saying… we would be cute," she told The Ellen DeGeneres Show.
Hewitt has since apologised for revealing her crush on Levine, telling a radio host: "I feel like I should write him an apology letter on Twitter or something just to say I'm so sorry... I wasn't thinking that it was gonna turn into this whole thing and I feel bad."
> The Voice poll: Team Adam vs Team Cee Lo - who impressed you?
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