The X Factor turned Tulisa into a diva, claims her ex boyfriend Fazer!

Tulisa Contostavlos (X Factor)

X Factor judge Tulisa has become "too big for her boots", her ex-boyfriend Fazer has reportedly claimed.

According to Reveal magazine, angry Fazer has said that the reality show turned the 23-year-old into a diva when she signed up last summer.

Following their break up last month after 18 months together, a source blabs: "Fazer felt that Tulisa had become too big for her boots.

"When she was on The X Factor, everything would revolve around her. She started behaving like a diva and he got fed up with it."

And insiders claim that Fazer was always against the brunette beauty joining the reality series.

"Even though he never publically admitted it, he thought Tulisa sold out by going on the X Factor," a source tells the publication. "And this difference of opinion caused further arguments between then.

"He thought Tulisa had lowered N-dubz' reputation by taking part in the show. It’s not their style.

“And he didn’t like how Tulisa had changed.”

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