I am good - maybe better than good - at the forgive part. But, except in rare cases where you are absolutely sure it's safe - I don't believe in the forget part. That's just asking to have it done to you again.
I don't mean that I need to bring it up all the time - or ever. Just that I remember, and if I see the same warning signs, I know it's time for me to get out of the way.
result? A friend that I can still love like a sister. And 1 ex-husband.