1. Who you have told 2. How much you know 3. What your plans are
TELL HIM NOTHING.. the more nervous he is, the better because reality is going to hit a lot HARDER then
KEEP HIM ON THE DEFENSIVE so he is more frightened. This will help speed up diffusing the affair.
if you let him lead you around like a puppy he's going to remain in fantasy land and think he's still got you by the lead.
Show him you aren't going to be messed with any longer... NO COMPROMISING OR NEGOTIATING for at LEAST one week so you can calm down a bit... he wants to get at you while you are still shaken up.