I only know of Nella from watching Catfish UK in which she seemed ok but she defintely gone on the show with a plan to get plenty of 'airtime'. The screaming etc during tasks but did well at the food challenge and seemed capable to doing better then she did last night, trying to start a drama with someone to make people sorry for her, trying to get the Girl catchphrase a thing etc etc.
But this has backfired as she chose the wrong person and/or issue, I mean Fred is used to working with Gino and Gordon, lol, and is too mature and respectful to start a full on arguement (this may change when sleep and food deprived). Also he didn't say anything wrong and only a few idiots would think he did.
I think the producers will have a word and she may apologise in some form but I hope she doesn't get voted to do more trails because it will just feed her ego knowing she will be getting more screen time and in the media the following day.