What is the main conflict in The Posthumous Papers of the Pickwick Club by Charles Dickens?

One of the main conflicts in Dickens', The Posthumous Papers of the Pickwick Club, revolves around Mrs. Bardell's lawsuit against Mr. Pickwick in which she sues him for breach of contract. Mr. Pickwick, who communicated the desire to discuss something with her, left Bardell believing that he was going to propose. When he didn't..... she took measures of her own.