Why is Devoleena so lost in the house??

Devoleena was constantly giving her two cents outside the house. She never stopped criticising every possible thing so even after following the show why is she lost in the house?! There are two clear teams in the house, Rahul's team and Rubina's team. Devoleena simply had to jump into one of the wagons and enjoy the ride but her unreasonable outbursts and unclear thoughts made it worse. She managed to flip thrice today while in her season she often criticized Shehnaz for flipping at the smallest issues..