He has been on what he calls "a roll" for 3.5mths now.
This is half of your relationship 7 months is a very short time.
My husband, 3 siblings, and a niece are all crack addicts. They all have huge talent, great beauty, college degrees, and intelligence but they all are liars,cheaters, and put crack before their families & work and even their own real needs.
I used to think that my H was worth it but he is not. The glimpses of who he is deep down inside only show up when he wants my help to get dope or to get me out of his way to get dope.
I have gone thru this trying to get them clean thing X's 5 and it did not work the most loving thing you can possibly do is get out of his way so he does not have the
bad karma of dragging you down with him.
What you are feeling is not love but, a very powerful obsession. I say this with a lot of love and compassion for what you are going thru: Love don't put up with crap kiddo...