One Direction's Harry Styles tells Caroline Flack to "cool it"!

Caroline Flack

Xtra Factor host Caroline Flack has seemingly been snubbed by One Direction star Harry Styles, with the teenager telling the telly presenter he wants her “cool” their relationship.

There’s been no shortage of criticism about the relationship, with Caroline Flack – 15 years old than Harry – even receiving death threats from One Direction fans.

And now it seems like that the fling may already be cover.

“Caroline and Harry have a lot of fun together, but Harry has asked her to cool it,” a source told Star magazine this week. “He’s only a teenager – and he is extremely busy with the band, too.

“He adores Caroline but just doesn’t want a serious relationship or to be tied down right now.”

The insider added: “He has been spending a lot of time with the JLS boys, as well as the One Direction guys, and they have all advised him not to get too serious with Caroline. They say he’s too young and there are a lot of girls to meet yet!”