I may not be the best person to give you advice as I'm sort of in your shoes. I know a lot of people would say don't let him see how much you're hurting, but I say it's ok for him to see it, to remind him that what he's doing is wrong. You've been building up this hurt over time and sometimes we need to let things out.
But I agree, now that it's out, let him stew on it. I'd say get out of his way tonight. You don't need to act like you're happy and ok again.
FWIW, if the whole pursuer/distancer thing works, you letting him know that you're not ok and pulling back should make him pull towards you.