Olly Murs: Caroline & Harry's Relationship 'Isn't Concrete'
Flack's Xtra Factor co-host has given his opinion on their romance...
Speaking to the Daily Star, the Dance With Me Tonight singer revealed: "Nothing's concrete. It's all good.
"Everyone tweets what they want but no-one knows the inside truth - that's private. All this taking pictures and stuff is unfair.
The Essex boy continued: "Harry is a good looking lad and most girls in this country would want to snog him."
One of Caroline's friends has also shed some light on her relationship with Styles, revealing that during their sleepovers, the 32-year old and Harry only play games and kiss.
The source told Now magazine: "They played the game where you write a famous person's name on paper and stick it on your head. There was a lot of smooching going on, too.
"Caroline's very mad and young for her years - Harry's the more mature one, really. He's cheekily called her his mentor.
The insider added: "They might have got caught out after their night together, but at least everyone knows and they can just enjoy themselves."