Kitty: A Pride and Prejudice Sequal

It's been 3 years since Lydia's infamous scandal.
And in those 3 years Kitty has improved her behavior a great deal.
Much to her families delight.
When Lizzy and Mr. Darcy decide to bring her to London for a season she couldn't be more delighted.
But before she goes she meets a mysterious man servant named Robert.
Robert is rude and short with her and Kitty wouldn't mind never seeing him again. But when she finds out he is the right hand man to the proud, arrogant and quite rude Mr. Hawthorn, after said person pays a visit, she believes she understands why Robert was so short with her.
But Robert is not everything he seems and is quite happy to keep Kitty in the dark.
Meanwhile in London Mr. Hawthorn seems to be becoming more infatuated with Kitty at every meeting they have.
Who will it be in the end? The mysterious man servant Robert or the proud and very sought after Mr Hawthorn?
More importantly who would her family approve of?
And would they trust her to make the right decision?