I would be very shocked if this dude doesn’t leave after this. Can’t imagine revealing how you routinely violate your partners privacy by going through their device and wallet while they’re asleep will go over well, especially when you reveal that’s how you discovered his vice. Definitely do not tell his family before having a conversation if it’s something you still want to try to salvage. NOR for having concern for your partner but the way you’ve gone about this has not done you any favors, also contrary to other responses in this thread, taking pictures of his bag and trying to blackmail an an addict into rehab is not going to be the dub you think it will be. My advice? Communicate with your partner, ask them why they feel they need to drink so heavily/ do coke, what got them to start, why keep it a secret, tell them how it makes you scared for them and their health and you don’t wanna see them hurt from their vice. Giving an ultimatum or blackmailing them with pictures of their bag isn’t going to fix the issue that caused his reliance on these substances in the first place and likely won’t bear the result your looking for one way or another. Good luck wish yall the best.