Drug advice

Anyone ever been in a relationship with a drug addict I need advice I've been with my bf for 7 years and I just cant take it anymore ive been threw so much for him and its like I don't matter all I ask for is love I know how good he use to be all I want is that back but when I tell him my feelings he gets mad or makes a joke about it I have so much love to give I just so sad and tired of not getting any back I feel hopeless