It looks like following her break up and the end of her engagement to Big Sean, Naya Rivera has been lashing out at the cast and crew of "Glee" season 5.

According to Hollywood Life, on April 15th Rivera and her costar Lea Michele reportedly got in a fight on set after the actress who portrays Rachel Berry left and made everyone wait to resume filming.

However, a source revealed that the starlet has not been a problem on set despite TMZ's claim she has been a diva, an insiders revealed that it is Rivera who is causing chaos on the hit show.

TMZ reported that Michele, 27, left the set which is when Rivera, 27, went to producers and complained. Once Lea got wind of Naya's complains she stormed off of set and Rivera was fired.

A source said, "Lea didn't even know that Naya complained, if that did in fact happen," adding, "She (Naya) showed up to the set in really bad shape - she's been acting more and more erratically on set.

"She went off on one of the producers on the show and they got really upset with her and it escalated from there."

In addition to the claims, Michele did leave the set to do a live Twitter chat that had been scheduled in advance but she was accompanied by creator Ryan Murphy and two other cast members.

An insider revealed, "Naya's been showing up, clashing with a few cast mates, and [her] behavior's been a little erratic and unpredictable."

The source continued, "This time around, she's trying to pin it on Lea. It makes no sense, especially since the two girls were on the set together but they weren't actually working [on a scene] together."

The insider also denied that Naya Rivera's diva antics have anything to do with being dumped by Big Sean.

The source said, "With her behavior . . . it's a lot more serious than a called-off engagement."