2. Nick Viall and Kaitlyn Bristowe
The pair actually dated on Kaitlyn Bristowe’s season of The Bachelorette. Nick Viall then went on to become The Bachelor. Close to the end of his season it was announced that he would compete on Dancing with the Stars. This news angered Bristowe because she said she wasn’t allowed to accept a role on the show when she was offered one.
After Bristowe’s tweet (above), it took some time but The Bachelor and The Bachelorette producer, Mike Fleiss eventually responded by tweeting to Kaitlyn that she would be allowed to compete if she wanted. But it was too little, too late.