My account is linked to xbox live and holds the license for the game. The console I'm using is not my home console, as I game share with another. In order to game online my main account has to be signed in (in the background). Then, when I log on through a secondary account, it uses the same save file as my main account, carrying all the progress that I do from my secondary account to the main one.

I cannot log out of my main account as it is not my home console and my home console is in different network. Basically if you are game sharing and are the main account holder (the account that buys gold and games) you are screwed.