Baby....
If something does happen...God forbid, then it would not be your fault. look at all that you have accomplished! 63 days! WOW! you are doing better than i am. I am currently in a relationship with someone who uses, but not like me, but yet he doesnt understand. everyone on here told me that haveing a relationship would be hard with all i am going through. and they were all right! sometimes i guess you have to be alone with god for him to really hear you. if you can make it 63 days, you can do anything! i am proud of you! it is normal to be worried. you are further than he is... and it is understandable.. i am sorry that you are going thru that... but i KNOW you have the strength to do anything... you proved it already to yourself. no make life better! go all the way. Maybe someday down the line, he will be clean too, and then a better relationship is always possible!
Good luck!