I'm a 21f that has recently developed a great friendship with a 27m that shared with me that for five years he was addicted to heroin. I've known him for about seven months and he has always been completely upfront and honest with me. He told me that he has been clean for four years (it will be five this upcoming July.) I'm not too concerned about him being dishonest or relapsing- he has been completely upfront and honest with me so far. 

What dangers are there in potentially being in this becoming a romantic relationship? Dangers in us being sexually active? Since he was an intravenous drug user are there any special dangers I need to know about? I am really comfortable with asking him questions but, I don't want to be offensive to him or make him think I am making accusations about him "not being clean" because of his past.
user
Friend was heroin addict for
assistant
I'm a 21f that has recently developed a great friendship with a 27m that shared with me that for five years he was addicted to heroin. I've known him for about seven months and he has always been completely upfront and honest with me. He told me that he has been clean for four years (it will be five this upcoming July.) I'm not too concerned about him being dishonest or relapsing- he has been completely upfront and honest with me so far. 

What dangers are there in potentially being in this becoming a romantic relationship? Dangers in us being sexually active? Since he was an intravenous drug user are there any special dangers I need to know about? I am really comfortable with asking him questions but, I don't want to be offensive to him or make him think I am making accusations about him "not being clean" because of his past.
user
Friend of 7 months shared
assistant