It has been claimed today that X factor judge Tulisa split from her boyfriend because of his friendship with Topshop heiress Chloe Green.

The news of Tulisa and her N-Dubz bandmate Fazer having split broke yesterday, the couple had previously battled to keep their relationship a secret but went public during 2011 and appeared happy together.

However, that is no longer the case and it is believed that Fazer spending time with Chloe (despite being asked not to) was too much for Tulisa. The girls have a long-running feud which started last year when Tulisa offended Chloe when she had her moved from a table in top London club Whisky Mist.

An insider spoke to The Mirror and said: 'Tulisa and Chloe had their differences after a misunderstanding which left Chloe absolutely seething.

'There were claims Tulisa was ‘rude’ but she genuinely didn’t know who Chloe and her pals were when they were cleared from her table.

Clearly, Fazer's frienship with Chloe is a problem and he is rumoured to have spent time partying with her as recently as this weekend.

'Tulisa would never want to try to dictate to Fazer who he can and can’t hang around with, but she’s seething that he keeps being spotted with that woman. It is rubbing salt into the wound.'

It is thought that Tulisa will release her autobiography in 2012.