It looks like Ariana Grande has a new wave of diva rumors to contend with. Reports have surfaced that the singer’s life coach quit working for her because he couldn’t deal with her bratty behavior. Sources close to Grande are striking back, insisting it was she who fired him because he was too overbearing. The life coach in question seems intent on getting his side of the story out via Twitter.

Page Six reported on Monday that the employee ditched Grande months ago. They quote a source who says, “He just couldn’t take it anymore. Everything people are saying about her is true.” Gawker identified the employee as likely having been Isaac Calpito who worked as the singer’s choreographer, in addition to reportedly helping her stay centered and healthy. He is a Kabbalist, and is said to have influenced Grande in adopting the spiritual practice.

A source from Grande’s camp told Page Six that Calpito is actually spreading false rumors about the singer, in order to get revenge on her for firing him. The source says, “It is nothing but a spiteful former employee spreading rumors around town for the last several months.” Gawker adds that she may have fired the choreographer because he allegedly pressured her to starve herself.

Calpito has been tweeting up a storm aboug the situation, in an attempt to clear his name. He began a series of posts by saying, “There have been a lot of lies and false accusations about me. I have kept quiet and classy till now because that is the kabbalistic way.” He went on to insist, “I wish Ariana the BEST and even if I had a story to sell….I wouldn’t.” He then added, “First of all, I was NOT fired. I resigned. Two: I do NOT force people not to eat. I encourage people to be healthy and fit.” 

This is only the latest in a seemingly constant stream of gossip regarding Grande. Other rumors have included claims that she was a “nightmare” at this month’s Stand Up 2 Cancer fundraising event, that she stormed out of a recent photo shoot with several photographers and members of the press in Australia and that she once said that her fans, “I hope they all f*cking die.” Last week, the singer took to Twitter herself to address the reports, tweeting, “Some of these rumors that have been coming out about me lately actually have me laughing out loud. Really can’t take them seriously.”