He smokes cannabis resin?!?

My bloke is thirty and has been smoking for twenty years. I understand that some habits are hard to break, and didnt strictly ask him to quit. Now, out of curiousity, i asked him that if i wanted him to, would he quit. He pretty much shot me down and said no whilst laughing, and this really p*ssed me off. He says he loves me, but does he love drugs more?