Well, now that the freakout storm has passed over and you and your BF are calmer, it's about that time to sit down and share with one another. Trade apologies, acknowledge hurts, reaffirm that you are still in this but learning how to deal with each thing as it comes. He probably said some terrible things too, and this was all after a very new and very emotional event.
It's unlikely that everything will go as smoothly as you think it will. The important thing is to voice your discomfort and not feel ashamed that you weren't as calm as you thought you would be.