A member of my family shared his game library with me with the steam family sharing. He has the Stranger Things DLC for the game Dead By Daylight, so I now can play the characters on that DLC. I upgraded them, spent bloodpoints (the money of the game), I unlocked the perks for all of them etc... Unfortunately that DLC isn't available anymore. Does that mean that if he stop the steam family sharing with me, I will just lose everything?