Mrs. Laura Cheveley Timeline and Summary

Mrs. Cheveley makes a splash at the Chiltern's party.
She blackmails Sir Robert with the Baron Arnheim letter. He promises to do what she asks.
Furious that Sir Robert's gone back on his promise, Mrs. Cheveley confronts Lady Chiltern. She exposes Sir Robert, creating a rift in the Chiltern's marriage.
Mrs. Cheveley makes a surprise call on Lord Goring. She finds Lady Chiltern's letter on pink stationary and thinks it's a love note.
Sir Robert discovers that she has come to call on Lord Goring and curses her, thinking that his friend has betrayed him.
Revealing the purpose of her visit, Mrs. Cheveley proposes marriage to Lord Goring. If he agrees, she'll give him the Baron Arnheim letter. No dice.
Lord Goring confronts her about the theft of the bracelet and says he'll call the police. Mrs. Cheveley clears out – but not before stealing Lady Chiltern's letter.
She sends the letter to Sir Robert, but her wicked little plan falls flat.