I understand how you feel, but resentment is like cancer. It eats you inside out. There is a saying: Resentment is the poison I take to kill you." And it's true.
I also think that they have NO business living RENT FREE in my head!!

I have better things to think about than them. They just aren't worth it. So by erasing them, they have NOT won.
That's the way I feel. And it works for me.

God bless you my friend. Hugs, Lee