junkie on junkie dynamic will literally ruin your entire life lol. No relationship could be better and worse. I know it really sucks OP especially since you seem to like this guy. But eventually you might realize with him in your life you will never be able to be clean :/
Seeing someone who likes oxy while sick is probably like being a dog watching someone eat bacon. You will always see him and want to be high. That's my experience with my life's other pill junkie.