As a long term drug addict (24years) currently on H I am saying you are making the right choice.

Drugs are his life, they r the first thing he thinks of when he wakes,the last thing he thinks of at night. The term 'user' doesn't just refer to his addiction, it refers to his entire way of interacting.
You will never come first while he has a habit. Sometimes his honesty brutal as it is might seem like a step towards recovery...It isn't, after a certAin amount of time you know exactly how much to say to convince people your attempting to change.

He needs to do the work first, it's quite likely he hasn't been involved with a woman In years,you don't feel the need when you have a relationship with drugs, your focus is what do I do to get the money for my next fix. It's common for women to think better of a guy because he isn't trying to get in her bed, but if your a user it's because your working an angle for money instead.

I am sure someone will disAgree with me and whilst I sure there are a few exceptions, I would say I am an exception to the rule. But I still have done most of these things at one time or another. Some things don't ever seem to leave you.
I say if he wants a relationship with you bad enough he will stArt down the roAd to recovery first.

I wish you all the best. Good luck.