I have an alter-ego

I have an alter ego. Demetri is a man, he's mean and talks like he comes from the 1700's. He's a sarcastic womanizer and sometimes it's scary because I'll back out and when I come to, I'll find out that Demetri did all these bad things. Now I only have one friend that I found over the internet who also has alter egos. But slowly I've learned to control it a little with the help of a few perfessionals.