You have just uncovered why this is bugging you so much-- past bullying and past trauma. That is why you cannot let this go and rise above it. I have been thinking that you are feeding into all the negative drama around this person and need to rise above it and be the adult in the situation, but now I understand why this is eating you up so much.

Perhaps work on releasing and healing the old drama and harm that it caused. Do you have a therapist? This is a good thing to work on in therapy.

This person has most certainly created split politics and drama. You, as an adult, have a choice to rise above it and feel confident in yourself that you've done the right thing by YOU, ie, said something to those higher up and stood up for your rights to be respected at work. You have every right to speak up, and I am glad that you did. If others don't like it and look down on you for it or blame you for him leaving, that's their problem. They are not seeing that what he does is just plain wrong and poor/bad behavior. They are condoning the behavior in a way by not seeing it.

No one should be picked on at work and/or bullied. Period. So, kudos to you for saying something, and if he left and is blaming you, well that's what these types do - they blame others rather than take responsibility for their actions. He will never apologize or own up to the behavior. But again, that's his issue and problem, not yours. Don't take on the weight of the world and everyone else's issues. They have the issue, not you, and you've done the right thing for YOU. ((((Hugs))))

I hope you find some inner peace and resolution soon!