Being wealthy is wonderful.
Stell is very spoiled and dramatic. When a situation occurs, she will always seem like it's more important than it actually is. She is a master manipulator. She could possibly persuade anyone to do anything, especially men. She has a seductive personality that can practically charm any man, married or not, and the fact that it seems to be working on her brother-in-law thrills her. All she wants is to be Queen, so she can gain the throne back. She is really selfish, and loves money. She only thinks of herself, the complete opposite of her sister.
She is the youngest of her siblings, and the most attractive. Ever since she was young, she was always jealous of her siblings because they were older. She became outraged when her sister fell in love with a prince, and got married, thus making her queen. Stella wanted to be queen, and now this is the only chance she has to claim what should be hers.