Writing him more emails will only prolong unnecessary communication. You know he’s a jerk and he knows he is a jerk. Writing to him again will just prolong all this. Writing to him will not give you your power back because you never lost the power. He can’t take your power. No one has that ability

The best revenge is living well.

Showing to him that you are distressed and angry is not the way to get power back. In fact it would show him that he has power to upset you and you can’t let him go.

Completely ignoring him is the way to show that he doesn’t matter and his nasty dealings aren’t effecting you anymore