STRICTLY Come Dancing pro Carlos Gu has broken his silence on his friendship with Nancy Xu.
The BBC One dancer and choreographer has confirmed the fall out for the first time.
Nancy, 33, and Carlos, 31, were previously thought to have grown close to one another as they both grew up in China together.
He branded his co-star as his “favourite sister,” while Nancy called him “my baby brother”.
However, we previously revealed that the former Strictly Come Dancing BFFs had dramatically fallen out.
The Sun on Sunday reported that the duo had unfollowed each other on social media and are refusing to speak backstage.
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It came after Carlos was said to be disappointed at not getting a partner this year, and Nancy was focused on her pairing with X Factor winner Shayne Ward, 40.
But speaking to , he said that although the pair 'are fine,' he implied that they had argued.
Carlos admitted: "We're fine. We've been friends since childhood, and friends argue.
"We're too close and are like brother and sister to completely fall out."
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This was after a show insider told us that behind-the-scenes tensions had made the atmosphere 'awkward and tense' for all the stars.
Our source explained: "The feud between Nancy and Carlos is really sad and has left everyone really shocked.
"They’ve been close since childhood, but have fallen out and unfollowed each other on socials.
"The atmosphere on set is said to be awkward and tense when both are around, and to many it was a relief when Carlos didn’t attend the show weeks ago.
"Carlos is said to be subdued after the falling-out and is also struggling with not getting a celebrity partner.
"His friends are worried about him as he is so far away from his family.
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"He has wiped all pictures of her from his profile and unfollowing each other on Instagram is the ultimate finality in their friendship.
"With all the other drama in the Clauditorium, it’s the last thing bosses need."
Strictly Come Dancing is available to watch on BBC One and stream on BBC iPlayer.