Lea Michele might still be missing Cory Monteith and being on the set of 'Glee' isn't helping. As per recent report, Lea Michele boyfriend Cory Monteith's death has affected the brunette beauty's relationship towards her co-star Naya Rivera. While filming one of the 'Glee' episodes, a tension took place between Michele and Rivera allegedly because of the 'Louder' singer's diva-like attitude.

According to one insider, Rivera told the show's producers that Michele was being too difficult to work with. When Michele heard Rivera's rants, Monteith's girlfriend allegedly walked out. On the contrary, one source said that Rivera backstabbed Michele who didn't know about the telling of. It was reportedly Rivera who was asked to leave the set because of her rudeness.

If the two are indeed in conflict, it might be associated with the grief that they are going through. Ever since Monteith passed away in July 2013, Michele has been trying her best to move on and get support from her friends and family members.

On the other hand, Rivera might feel bewildered when her rapper boyfriend Big Sean suddenly called off their engagement. The reason isn't disclosed though Big Sean reportedly cheated which prompted Rivera to be paranoid from then on.

Will Michele and Rivera be able to make up just in time for the next episode of 'Glee' on April 22?