How do I tell if he still smokes?

I don't know how you could tell if he is still smoking. I quit smoking for a while, when I started back up my husband didn't even know. I would go for walks by myself, and smoke before I came back home I would put a halls cough drop in my mouth, put lotion on my face, and hand sanitize on my hands. My jacket smelled like smoke, but I hadn't washed it before I quit. It's hard to quit smoking. The only way he can quit and be successful is if he quits because he wants to. But when he decides that have him to get rid of all cigarettes, and to stop hanging around people who smoke. Just smelling it makes you want it. There are other ways he could keep getting nicotine when he quits to help ease him into it. They have the ecig now and it helps out a lot. After a month of using it, you wont want a cig, and you wont need the ecig either.

Tell him that he can either choose smoking or you. If you catch him again, then he needs to go to a recovery center or you need to find someone that has his life together. He should be able to come clean with you and the fact that he is hiding such a big thing from you means that he is not comfortable enough to ask you for help.

You're not his mother or probation officer.

If he wants to smoke, you need to either accept it or find a non-smoker.

You don't get to control what people do or demand they change to suit you.

Sounds like your parenting your bf 😀