New "Glee" season 6 spoilers reveal that Naya Rivera is returning for the last season - but not as a series regular, and instead as a recurring guest star. Did Naya Rivera's feud with Lea Michele force Big Sean's ex girlfriend to change her status on "Glee" season 6?

According to TVLine, "Rivera will be billed as a recurring guest star and not as a series regular - a change I'm told she requested (and the producers honored)."

However, TVLine notes that "Glee" actors have had their contracts tweaked over the years of the FOX series, but still "maintained an active presence on the show," such as Amber Riley and Harry Shum Jr.

As we previously reported, there have been rumors of a Naya Rivera and Lea Michele feud, with claims that the two "Glee" stars do not get along - perhaps this was the reason she didn't want to return for the final season regularly?

Naya Rivera married Ryan Dorsey in a secret beach ceremony in Cabo San Lucas, Mexico on July 19 (just four months after breaking off her engagement to boyfriend Big Sean), but sources said that Lea Michele is not rushing to wish Naya a happy marriage.

"She so doesn't care about the marriage," a source told HollywoodLife.com about how Lea Michele feels about Naya Rivera's surprise wedding to Ryan Dorsey. "She is not keeping track of Naya's life whatsoever and is in no rush to send well wishes."

"They still aren't friends - and concerning Naya, Lea is in the position where if you have nothing nice to say, say nothing at all," the source continued.

As we previously reported, TMZ revealed the Naya Rivera and Lea Michele feud started when Naya became fed up with Lea's "diva antics." Things got so bad that Naya told "Glee" producers that she was annoyed with Lea's behavior. When Lea found out, she walked off set during filming of season 5.

But TMZ also reports that Lea's sources have a different story about what happened, saying that "Lea was totally unaware of any complaints about her ... and Lea and Naya weren't even shooting scenes together." They also claim that Naya was the one who got tossed off set.

"Glee" season 6 will premiere mid-season in 2015.