Calum told Nadia he wanted to cook something 'Light'
That wasn't directly insulting Nadia's cooking, he even said to Nadia that she's aware he often asks her for advice, but he NEVER SAID she was controlling the kitchen or being nasty about Nadia's cooking was he, Perez twisted that, to cause trouble, he's playing a game and stirring things up to cause argument is part of it.