Matthew Perry and Jennifer Aniston are allegedly feuding.

In its April 18 issue, Us Weekly claimed that Perry didn’t like the special treatment that Aniston got during their Friends reunion.

“Jealousy was rare, but Jen’s special treatment during the final seasons created some bad feelings. No one wanted to deny her success, but their ability to negotiate together was slightly diminished because of her arrangement. Everyone was getting movie offers, but she was the only one who got VIP treatment,” the source said.

Other than Aniston, Perry also allegedly had some issues with the writers of Friends. And the source claimed that the actor will most likely discuss this rift in his upcoming tell-all.

“All the actors feel like they weren’t given enough credit for lines and ad-libs they came up with. Matthew was the one most known for improvising lines. He even helped punch up the rest of the cast’s one-liners. He’d have a hard time resisting going into it in his book because it was so important in his own evolution as a creative person,” the source said.

This isn’t the first time that Perry was rumored to be including controversial revelations in his upcoming memoir.

Last month, New Idea claimed that Perry promised Aniston that he would show her a draft of his memoir. But when The Morning Show actress asked for it, Perry refused to share it with his former co-star.

“Jen and Courteney are freaking out. Jen’s concerned he’s going to turn her into a diet-obsessed neurotic because, well, she kind of was one back then, while Courteney fears he’ll spill about how he tried to steal her from her then-husband, David Arquette,” the source said.

In February, OK! magazine claimed that Perry hopes that his memoir would be a huge hit. And he doesn’t care who will offend along the way for him to reach his goal.

“The word is he’s going to unload on the whole crew, which has everyone in a panic. He figures it’s time to come clean not just about his own life, but also about the good, the bad, and the ugly things that happened on the Friends set,” the source said.

However, none of these rumors are true. Perry is busy with his upcoming memoir, which will be released this year. And it’s unlikely for the actor to have time to burn bridges with his former co-stars.