It's the Freddie effect - the public turned on him when, in their eyes, he became too cocky when he laughed at his main tormentor Lisa for being up for eviction. Instead of understanding his entirely normal reaction, he overnight became public enemy no. 1 when the GBP sided with the bully. Same thing is happening to Deana now.
It seems a lot of supporters of Deana had put her on a pedestal as some perfect ice queen, and instead of understanding the very human trait of her wanting some "payback" for the sh*t treatment she's received from the insider gang, they have turned on her for taking the opportunity of needling one of her main tormentors throughout the show. Luke S should be thanking her for the undeserved sympathy he is getting now,
Fairweather fans are easily swayed