Maddie,
If the manager feels like he isn't addicted anymore, then you may not have made such a bad choice after all. Sure, ideally, we codies don't live with our addicts whenever possible... but maybe this will be a good opportunity to help him get reestablished somewhere closer to home, where he could be on his own but close enough to get to you if he needed you for some legit reason. He definitely does not need to live with you permanently, but maybe for now you could both use the time together for your benefit. Either way, good luck. No judging here, just hopes for the best.
*hugs and prayers*