It's kinda what's happening to me now. GTA Online is the game I've been playing the most throughout these months and I get really tired of doing the same heists and missions to gain money. And to make matter worse, the latest update content just makes the game a chore to play now. I had to resort to other games in my backlog to not go to a burnout. For me, that feeling comes and goes from time to time, which could be most likely remedied by playing something new.