Abigail and John were once in a romantic relationship, but John ended it. Abigail is still in love with John, and she uses her power in the witchcraft trials to try to get him back. She accuses John's wife, Elizabeth, of witchcraft, and she tries to seduce John herself.
John resists Abigail's advances, and he eventually exposes her as a fraud. Abigail is forced to flee town, and John's good name is restored. However, the damage that Abigail has done is irreparable. Elizabeth has died in childbirth, and John is left bitter and alone.
The relationship between Abigail and John is a key part of the play's themes of power, deception, and innocence. Abigail is a powerful woman who uses her power to manipulate and destroy others. John is a good man who is caught up in Abigail's web of lies. The play's tragic ending is a result of Abigail's evil manipulations and John's inability to escape her clutches.