Should i date a drug addict in recovery

He is a great guy, really honest to about his past and tells me everything. He even tells me when he feels tempted to do drugs, and keeps on talking to me until the temptation passes. But now he is pushing me away because he feels that I am too good for him, and that he wants to protect me from him and from heartbreak. I dont know whether I should let him disappear from my life or try my best in helping him steer away from drugs. 
Hes never stolen anything for drugs, his family is supportive of him being clean.