Hey, i know what its like to be in love with a guy... I dint like giving this sort of advice because I feel like the person I am giving the advice to Will just read past it, but Im going to be completely honest with you...
you can do Wayattyter than this. he obviously does not have his priorities straight. you are so young, and you have a long life ahead of you.... get out there, meet new people, good influences, to get over him. he is not interested in you... his drugs are more important. and he knows how you feel about him....
if you want to make any form of contact with him, make it once more and make it a good one; TELL HIM LIKE IT IS......
"if you are ever interested in being with me, get your life together. get clean. until then, i dont want to be with you. but i will be here whenever you are ready......."
good luck... hope i helped some

stay strong.