Maybe giving someone a "chance" is not such a bad idea.
And even with a guy not using or never used drugs, there are always things that can be hiding in someone's past, right? And so far he has been up front with you, he was not obligated to tell you all this stuff, but apparently wanted to let you know. It is just a matter of us being aware of our surroundings and others. Bama, I do assume you know the signs, if this guy is into something that will be a setback for you, right? So, what the heck, a date once in awhile can't hurt, requiring there are NO "substances" present, stay away from that. Perhaps, just starting as friends, getting more familar with one another would be best at the present. Just avoid being hurt, and run away from anything tempting or that is detrimental to your health and well being, please.
Take care now,
DE

(((((((((((((( Bama )))))))))))))