Who is most at fault in the affair between John Proctor and Abigail Williams?

It is difficult to definitively determine who is most at fault in the affair between John Proctor and Abigail Williams. Both characters have some responsibility for the events that transpired.

Abigail was the one who initially made advances towards John, and she continued to pursue him even after he made it clear that he did not want to be with her. She also lied about John's involvement in witchcraft in order to get rid of his wife, Elizabeth.

However, John was also at fault for engaging in the affair in the first place. He knew that Abigail was a young, vulnerable girl and that he was taking advantage of her. He also knew that the affair would have serious consequences for his wife and family.

Ultimately, both John and Abigail share responsibility for the affair and the tragic events that followed.