Dianne Buswell has revealed the reason why she became emotional on Strictly Come Dancing last week.The 34-year-old and her celebrity dance partner Bobby Brazier scored 30 points for their Tango to Fashion by David Bowie, but in the post-performance interview, she became emotional.The Strictly pro struggled to hold back the tears which sparked concern among fans and viewers. When pressed by the show host Claudia Winkleman, Dianne said that 20-year-old Bobby had been her "rock" after an "emotional week." Now Dianne, who joined the BBC dancing series in 2017, has shared the reason she became emotional with fans.