Flack posted the threatening comment on her Twitter account after news of the pair's supposed split surfaced, which read: 'You Broke harrys heart... now we will broke your face...'. The Xtra Factor host to responded with a curt 'Nice'.

Caroline reportedly split with 17-year-old Harry after the teen put rumours surrounding their romance to bed when he admitted in an interview with Real Radio that he was 'single'.

Caroline and Harry have been receiving a lot of criticism over their brief relationship due to the 15-year age gap between the two, with even X Factor judge Louis Walsh getting in on the act.

After the final of the X Factor, Flack flirted with the Irish judge saying he had caught her eye with his 'suave' choice of jacket, to which he responded: 'I'm too old for you!'

Flack, 32, was also attacked by Kerry Katona and Alex Gerrard for the relationship.


Katona said: 'Harry is just a 17-year-old boy, so in my eyes it's wrong. He's not long left school. He's not even allowed to drink yet.'

WAG Gerrard chimed in: 'She's 15 years older than him but I don't think it's the age gap that makes the relationship a little odd, it's the fact that he's 17!'