Perhaps you may want to consider attending Naranon...for you...there is a link...your ex was an alcoholic and now you are with a drug addict. Might be just the right time to work on you, to not make the same mistake with another.... yet again.
As for him, he is not in recovery, his choices are his...and...yours are yours, it is not so much about your today as it is about your tomorrows.