It appears that Gwen Stefani is actually worried about how she's been portrayed on Miranda Lambert's new album The Weight of These Wings.  

According to In Touch Weekly, Stefani has been obsessing over the album, because she's intimidated by the fact that the album is Lambert's act of revenge against her and Blake Shelton, and she's worried about what she'll hear when she gets to listen to it.

"She hasn't listened to it yet because Blake is currently living at her house in Beverly Hills while he's taping The Voice in LA," a source told the magazine. "And he has a rule that Miranda's music isn't played-ever."

One song she is reportedly worried about is the track "To Learn Her," which is seen as an obvious snub towards her, with the lyrics "She'll be happy, you'll be sorry/Well, that's just how it works."

In addition, Lambert's album is doing well, whereas Stefani's tour sales tanked, and she's been finding it hard to cope with that fact.

"It has to be very hard for Gwen because Miranda is an absolutely beloved artist who is a household name all over the country," the source added.

Lambert has also reportedly refused to do any press for her new album and let the music speak for itself, after seeing how extensive press done by both Stefani and Shelton seemed to negatively affect their album sales.

"She was offered Rolling Stone, a New York Times piece...She went to her publicist and said, 'I don't want to do any of it. I want the music to speak for me,'" a source said at the time. "She only wanted to do TV performances. She made them turn all of it down. She said, 'Gwen's and Blake's albums didn't sell, and all they did was do press.' She's trying to go Beyonce and let the music do the talking."

All three artists have included songs on their albums that touch upon their divorces last year (Stefani divorced Gavin Rossdale while Shelton and Lambert divorced one another). Stefani's song 'Used To Love You' was about her ex-husband, while her song "Make Me Like You" was about Shelton. Shelton meanwhile included his duet with Stefani, "Go Ahead and Break My Heart" on his own album.