The Wife of Bath abused all of her husbands. She possibly murdered her 4th husband, and she found her 5th husband while her 4th husband was in London. She told the 5th husband "If she was to widow, he should marry her." The Wife of Bath only really wanted power and once her 5th husband gave her the power instead of her having to take it, she became a good wife.
The Wife of Bath married men with money and made sure she was taken care of. She was a poor women who had nothing and had to find a way to take care of herself,