Rumors continue to swirl about country singer Blake Shelton and his ex-wife, Miranda Lambert. The reports have been seemingly endless since Shelton started to date his new girlfriend, “The Voice” coach Gwen Stefani, but the most recent gossip claims Lambert is “so over” the new couple.

Shelton, 39, playfully nibbled on Stefani’s shoulder in a new photo and the PDA infuriated Lambert. “Miranda is now wondering if he’s doing this just to push her buttons. She can’t even bear to watch ‘The Voice’  or even hear about it. It just seems a bit all too pushed and not authentic to Miranda,” an insider told Hollywood Life in an exclusive story Tuesday. “Miranda is so over Blake’s over-the-top gushing over Gwen. It’s to the point where it’s just ridiculous.”

But Shelton can’t help but be publicly affectionate with Stefani, Hollywood Life wrote in a different story Tuesday. Her fashion sense is a major turn-on for him. “Every time you think she can’t look any better, [she does],” he told Access Hollywood Tuesday.

Miranda Lambert and Blake Shelton Miranda Lambert and Blake Shelton attend the BMI 2014 Country Awards, Nov. 4, 2014, in Nashville, Tennessee. Photo: Rick Diamond/Getty Images

The couple flirted during commercial breaks on “The Voice” Monday, an insider told Us Weekly Tuesday. They were spotted giggling and whispering throughout the night.

Part of the reason Lambert might be upset is because she still wanted to be friends with Shelton -- but he’s too busy with Stefani. “She would love to at least still be friends with Blake and talk from time to time, but he’s so enamored with Gwen that he doesn’t have time for anyone else, especially for Miranda,” an insider told Hollywood Life.

The engagement rumors probably don’t help, either. When Shelton performed his new song, “Gonna,” Monday, he sang, "Gonna put a rock steady on your hand." Many quickly picked up on the fact that “Rock Steady” is the name of No Doubt’s 2001 album.

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