If somebody kicks you in the face, are you gonna runaway and count your blessings? No way, I kick his ass, he raped my soul!
He picked the wrong woman, and I'm not afraid of him.
It might bother some sociopaths, especially if they have formed a lot of contacts with normal people, contacts that seem like normal relationships. If his job is involved, even better.... But I don't like your In your face style. It will come across as needy, attention getting and crazy. You need to this in a much more subtle way.
And by no means do nothing that will indicate you did anything. He will suspect you at once. So be careful with that.
The best thing is something that never reaches him, because for some people, any attention is good attention, and the last thing you want is feed his ego. Disappear from his life and if he manages to contact you, act bored and non-emotional. If you give him nothing he has nothing to toy around with.
Good luck.
If you absolutely need the stupid plan about the emails, make it general. Like an interesting but general FWD thing. Send it to yourself first so it looks forwarded already.
Make it look like one of those annoying "did you know this?" things. Call it something like "Do you know a psychopath without knowing?" Use the symptoms but design them slightly so they fit things he already done.
I'm not sure if you talk standard email or through Facebook. I have no idea how the internal mailing system works, I'm not on FB. But a standard email will reveal your sender IP. You might want to consider this.
Medulla is right.
He's moved on, has new people in his sights, and isn't giving you another thought. If you do something to get his attention then you'll anger him and you can't outsmart him if he wants to hurt you as a result of whatever revenge you thought up. Move on with your life. If you don't, he's still winning whether he knows it or not. If you want to do something for you, then move on because anything else is just confirming that he got to you.