Well after I found the emails, I found out his password because he is dumb...lol. He left his email open one day after he had registered for something online. It showed his screen name and password. I remembered he had once told me his password was the same for everything. I knew his password for about 2 months before telling him I knew it. He wasn't mad because I had just busted him on a lie. I investigate everything before I question. Now he knows that if I come to him with a question, I already know the answer. It took him awhile to learn that and that is how I busted him, but now he knows. He also has all of my passwords, which I gave to him because I have NOTHING to hide.
I don't know why he lies. He even lies to his mother. It is like a habit to him now. It is mostly dumb stuff, but it makes a person wonder what else he is lying about.