Hi there, I think they recommend a year sober before thinking about getting into a new relationship. I think it’s down to a lot of things but primarily a new relationship can sabotage his recovery. His no1 focus needs to be on staying well, yours needs to be on you.
Six months is great, but if you’re realistic it’s no time to jump straight back into a full on relationship. Why don’t you remain friends? see how it goes, be there for him as a friend but at a distance, I can definitely understand your hesitance at not wanting to get hurt again. I am married to an addict in recovery (8 months) clean and I still tread on eggshells in certain situations.
If he really likes you and you really like him, then time will tell if it’s meant to be. Don’t focus on his recovery, or his drug addiction, that’s his issues. I know with my husband I became so focused on drugs, that they took over my life and I’ve never even touched them.
Enjoy stuff together, normal stuff. Go out for coffee, the cinema, haha you get my drift anyway. I’m guessing that whilst in addiction he probably didn’t get that much enjoyment out of normal things so make up for lost time.
Good luck.