Please take Hurtin advice. Don't do anything. Don't leave any articles around. Try to use the 48 rule. Talk to your counselor first. Right now you are in trauma shock and you need to be healthy to make decisions. One thing that can be helpful(it's been helpful for me to manage my anger and not spit it out) is to write all that you'd like to say to him in a journal, all the questions you have and all the possible answers you could think he would give you. It's like having a conversation in paper without it actually happening. You will feel better. But don't show the paper to him.
If you feel you will not be able to control yourself around him, I'd suggest to say you don't feel well and avoid contact one on one with him. Go to bed early or do some workout. Occupy yourself. Your head will be clearer by morning.
