I'm not sure where to ask this but its really been bugging me. I recently met someone on xbox and added them as a friend. Whenever I invite them to a party their name along with another gamertag would sign in as well. I believe there is multiple tags under the same console. I tried asking the person why this is happening but won't really say. Has anyone seen something like this? Ive watched it from time to time and seen both tags playing different games at the same time.