Strictly Come Dancing dance couple Flavia Cacace and Vincent Simone have denied their romance is on the rocks, after rumours that Flavia has been getting close to Matt Di Angelo.

The duo – who insist they are still together – were seen arguing at a party last week and insiders say the atmosphere between the pair has become increasingly cold.

A source told The Sun: “If they are together, it’s hanging by a thread.

“Flavia and Matt have been spending a lot of time together and are very flirty with each other. Vincent is aware of that and is not at all happy about it.”

Two weeks ago the former EastEnders star sent Flavia a huge bunch of red roses before a performance – and Bruce Forsyth made reference to it live on air.

“Vincent’s face was like thunder when Bruce said that,” the source continued.

“It’s quite normal for dancers to send each other flowers to wish each other luck – so his reaction seemed strange at the time.

“But if he is worried about Matt and Flavia getting too close, that explains why he was so angry.”

A spokesman for Flavia and Vincent said on Tuesday: “They don’t remember having an argument in public but it’s perfectly possible, as dancers do. They are definitely still together.”