Proctor's decision is also motivated by his love for Abigail. He knows that Abigail is lying about him, and he wants to expose her for the fraud that she is. He believes that if he confesses, the truth about Abigail will come out and she will be punished for her crimes. Proctor is also aware that his confession will likely result in his own death, but he is willing to sacrifice himself in order to protect Elizabeth and expose Abigail.
Proctor's decision to confess is a complex and tragic one. It is a decision that is made out of love and desperation, and it is a decision that ultimately leads to his death. However, Proctor's confession is also a heroic one. It is a decision that shows his courage, strength, and integrity. Proctor's confession is a testament to the power of love and the importance of standing up for what is right, even in the face of danger.