Alexandra Burke and Ruth LorenzoX Factor best friends Alexandra Burke and Ruth Lorenzo reportedly had to be pulled apart after an argument turned physical last week.

The two women met and became best friends while competing on the ITV1 talent show last year. Spanish-born Ruth was voted off in week 8 of the show while Alexandra went on to win, landing her a contract worth a rumoured £1million in the UK and a £3million record deal in the US.

The pair moved into a flat together after the series ended and enjoyed a luxury holiday in Mauritius in January to celebrate Alex’s success - but are now back hard to work, travelling around the UK on the X Factor Live tour.

A source on the tour told the Sun that life on the road has caused tensions in the women’s friendships - which came to a boil in Sheffield last week: “Alex and Ruth are big characters and the fireworks were spectacular when they finally went off.

“Ruth claims they fell out because she pulled a dancer Alex had her eye on. She reckons Alex bullied her but the old green-eyed monster has been creeping in.

“Meanwhile Alex feels she is being singled out by Ruth and the others on tour because of her success. She insists she was never after any dancer - she doesn’t think that would be very cool. She thinks Ruth is just using it as a excuse to pick on her.

“But either way their friendship is well and truly over. They can barely look at each other.

“Both have threatened to leave unless the other is booted off the tour.”