Adam,
It took me a long time to forgive my abuser and sometimes, I still have to ask the Lord to help me forgive and forget again when the Devil brings it up again, But if she were dying, I would hope, I would be able to pray for her. Sister Wood, hurt me many times over in the times, I was in her church, but I can still forgive her and pray for her. I know that what TS did to you is far worse, and whether you forgive and forget him, is between you and the Lord.