Abigail was having an affair with John Proctor.
Abigail
Abigail
In The Crucible Elizabeth Proctor fires Abigail. She fires the girl because she thinks Abigail is having an affair with her husband.
Because she had an affair with John Proctor. (Have you actually read the book?)
Elizabeth Proctor fired Abigail Williams when she found out her husband was having an affair with Abigail. Mary was the Proctor's second servant.
if John Proctor had not had an affair with Abigail, then...
because she was having an affair with her husband
In "The Crucible," Mary Warren is reluctant to testify on behalf of Elizabeth Proctor. She is afraid if she does testify, Abigail and the other girls will turn against her. She is finally persuaded to go to court and testify by John Proctor.
Abigail Williams sets up Elizabeth Proctor's arrest. The fact that a poppet is in the Proctor's home gives credence to Abigail's claim that Elizabeth tried to "murder" Abigail.
Abigail wants to have sexual intercourse with John Proctor, so she sleeps with him.
If your question pertains to The Crucible, then Abigail would have been John Proctor's help or the help for his wife around their house. Abigail and John Proctor seemingly had a relationship that he eventually wanted to end,but Abigail did not.
John Proctor was 60, and Abigail Williams was about 11.