Answer:
1. Malvolio's love for Olivia is a one sided love, and it can be described as Malvolio desire for Olivia's money and power instead of true love. Malvolio always daydream about Oliva marrying him and him ordering Sir Toby around, as he thinks too highly of himself. However, Viola is dressed up and disguised as a man, and she was in love with Orsino, despite the fact that Orsino does not realise that Viola was actually a girl, Orsiono also loves Olivia and sent Viola to express his love to Olivia, which hurted Viola. In the end of the story, Orsino finally realizes that Viola is a girl and they fell in love.
2. Malvolio will fail because Olivia only treated him as his steward, Malvolio also thinks too highly of himself, which leads him into making foolish actions.
Rhetoric is the art of persuasive speaking or writing.
Not for sure what your paragraph is about, but here a few words for you :)
Sui Generis: being the only example of its kind, unique
Profligate: using money, resources, etc., in a way that wastes them
Obduracy: refusing to change in any way
Obstreperous: very noisy or difficult to control
When it said she was a bit of a BRAT.
The second one.., Since Avonlea occupied.
This gives the setting by telling where the story took place.