12 work-days of a hobby and your partner labels it an addiction thats divorce worthy? sounds pretty terrible. I strongly suspect he/she is probably spending atleast as much time on his/her hobby.
After a normal work day, after all my daily chores are done, gone to the gym and other things to take care of myself, I have maybe 2-3 hrs of free time. If we’re generous and say 3 hrs, that’s 150 days straight of spending your free time on a game and not your partner.
It's Factorio, so, yes.