When I met my ex- addict/alcoholic bf, eventually to become an ex-fiance, I was 15. We didn't see a lot of each other until I was 17. When we met he was on methadone. I think. During our time together he cleaned up and relapsed over and over and over and over.
Like others have said - I didn't know how bad it would get. I was blinded by my adolescent version of "love" and idealism. Our love would conquer all.
When I look back on it I still cannot believe how stupid I was. Being with him was the biggest mistake of my life. Leaving him (4 drama-filled years later) was the best decision I ever made.