Hello Cathy,
I just wanted to add my thoughts to you, indeed you are not alone here and i'm glad you found SR. It has helped me all those years, when my bf addiction was way over board.
I am also in love with a heroin addict. When i met him he was snorting, then he injected, then he injected H with sleeping pill. His body is full of scars and so is his mind. This journey is pure roller coaster extreme ride...
You do the right thing though i myself didn't manage (long) to do so.
Take care xx