Most Helpful Girl
Wow, that's really sad. I'm very sorry to hear that, my condolences.
It sounds like she went through a really hard time, and whether or not she deserves your forgiveness... I think you should forgive her. She has probably already torn herself apart and hurt herself with this, over the past two years, to be vindicated. I think it would be kindest to forgive her. It might also be good for you to try to part with some of the pain and anger, to move forward with a lighter heart.
But do what feels right to you.