Thank you for you advice so far.
It is very difficult being involved with a user. I know inside my own being the correct avenues to pursue for my own needs in life, and those avenues currently have no room for the user.
But this appears to be a very selfish outlook on the situation and perhaps he is right when he suggest I am selfish.
I'm stuck between attempting to change the user to fit my own ideologies for life or leaving the user behind.
I've never stood up and given an ultimatum as it is far from my beliefs of allowing each other to simple be, I wonder how others have faired with offering ultimatums to their loved ones?
I come from an upbringing of which addicts surrounded; a parent and a sibling. Do I unconsciously like to be involved with a user?!