Simplify the following text for a Grade 14 native English-speaking person.
Original: A former model and promotions girl , Grahame has become renowned for throwing temper tantrums â '' behavior that divided viewer opinion during her time on Big Brother and subsequently led to her being given her own reality television show entitled Princess Nikki .
Simplified: Grahame 's conspicuous temper tantrums divided viewer opinion during her time on Big Brother and subsequently led to her being given her own reality television show entitled Princess Nikki .