Alex Scott is reportedly "angry" that she had to re-appear with Neil Jones on "Strictly Come Dancing" after returning from injury.
The former England women's football player has received rave reviews in recent weeks after working with last year's winning pro, Kevin Clifton.
Neil Jones had helped with the choreography of her appearances on the BBC dance show while recovering from a knee strain.
The Sun reports that Alex was less than impressed that she had to drop Kevin after Neil was back in full fitness.
The 35-year-old former lioness allegedly asked the show's producers to allow her to continue with Kevin after impressing the judges dancing with him.
Alex was apparently "angry" when her request was denied and viewers saw Neil return to the dance floor last night.
It comes after strict judge Craig Revel admitted to Horwood that Kevin was better suited for Alex.
One source told The Sun that "Alex was angry and made it clear that she wanted to continue with Kevin."
They said Alex was "very energetic" and protested that she "wanted to continue with Kevin, she was so angry".
The outbreak allegedly came during rehearsals on Friday when their time on the show had been "pretty chaotic".
Doubts as to who she would actually have as a partner over the weekend had kept her in suspense, and the source said Alex was "unable to devote her energy exclusively to Kevin or Neil."
It was reported that Neil "helped most of the choreography while Kevin did most of the footwork and 90 percent of the training."
Alex is said to have been caught between loyalty to Neil, whom she really likes, and Kevin, who she believes makes the most of her and with whom she has better chemistry.
She was reportedly told by producers on Friday that Neil was fit to keep going, and she had to learn to dance with him after practicing with Kevin all week.
The source said, "Understandably, Alex felt incredibly frustrated and snapped lightly.
"She's very popular behind the scenes, but she's an athlete and just wants to be able to give the best she can."
Alex scored her best in dancing with Kevin and reached 34 with him last week.
During Saturday's live show, head judge Shirley Ballas told Neil, "It's good to see you again and in good health."
Bruno Tonioli was not so diplomatic and said to Alex, "It's good to see you grow in confidence – she's the leader now, who are you going to dance with next week?"
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