here's the thing u cant change someone. i am a recovering alcoholic and addict been sober and clean almost 3 years. he has to want it for himself and he was drunk and he didnt go for a walk. he's a liar and he knows it. but he wont admit to it. some people have to loose everything like i did and hit rock bottom, and then they have to change only for themselves, there are meetings aa for alcoholics and N/A for all the other drugs. he wouldnt be able to do either of these if he was to get clean or sober because if he did what could happen is his addiction will feed off of the dope. alcohol is a drug anything that is mind alternating chemical that u put into ur body is a drug. now for those of us who have mental problems or issues like adhd, bipolar and etec. yes u need to take ur meds. some of us addicts when was in our addiction had to go through treatment, like drug and alcohol rehabs. which isnt a bad idea at all. but again he has to do it when he's had enough. and he's only using u right now to support his addiction he has nothing to worry about he has a roof over his head, he has 3 meals a day i guess, and you to smooch money off of, or whatever he does, he has u to manipulate, nothings going to change unless you make decisions and the only thing that u can really do is.
1.kick him out
2.call the cops tell them you want him out (this is for ur safety cause u never know what people can do on drugs or drunk.
3.talk to him and ask him if he thinks he has a problem (which u said that he doesnt think he has a problem, so the best thing for u to do is just let him go, and let him go through what he needs to go through. because i mean he can kill someone drinking and driving, he can kill himself in a car wreck, he could go purchase dope, and go back to ur house and go in the house, and then cops could show up and you can get into some serious trouble because ur there as well and live there. so just choose wisely and think about urself because thats what he's doing. he's being selfish! i hope this helps in a way for u. those are some ideas and u can find meetings in ur area and state by going to na.org or aa.org try those websites and if he wants to go to those meetings take him there let him know in the begining he has ur support and stay at the meeting with him and listen to what the oldtimers are sharing and the newcomers because u can learn behavior, and catch things before they happen not to fix the problems urself, but protect urself and kids if you have any. but in those meetings u learn alot of stuff and i think it would do some good for u as well. that way if he does decide to go to meetings and u go with him, u will get an idea of what this disease of addiction can and will do. i wish u luck and i hope nothing but the best for u