I honestly don't think Tahan has grown/changed at all. She is still a spiteful, backstabbing, nasty, shallow b!tch. Just seeing her mimicking Jade, because Jade dared to ask if it was alright with the girls if she slept in the purple room, made me hate her even more. Jade was being polite by making sure the other girls wouldn't be upset if she broke the all girls in one room rule (even though the rule was broken by BB first). She was being coinsiderate. But Tahan didn't get that. She (mostly) hates other women and can't understand girls caring about other girls. She's a bitch, and she doesn't give a damn about anyone else but herself.
I don't want her to win but she probably will.