No no no.
Let me set this straight.
April 2007- I start BF2.
Summer 2007- Being good friends, I had a small LAN party with him. I show him BF2. He likes it- Creates an account on my computer, using my current GUID.
Jan-Feb 2008- Myride1 buys his first copy of bf2 (currently banned)
Numerous LAN parties, sleep overs, etc happen, last one probably around March 2009 (last time he used my guid at MY house)
May 2009- I don't sympathize with him, believe me. He uses hacks and gets banned.
My copy/GUID never left my house. It's only been installed on my computer.