I think this song is about the realization of having the person you need in your life, then throwing them away for something that you think you need, possibly drugs. Giving up that person you need for the addiction you have for drugs, and making that realization. The use of the word "it" in the chorus confuses the listener into not know if "it" refers to drugs or the significant other, which I think what the singer wants. To have the listener be just as confused about what they want/need. The singer doesn't know whether they need the feelings that drugs give them, or the feeling that love gives them, more.
I think this song is about the realization of having the person you need in your life, then throwing them away for something that you think you need, possibly drugs. Giving up that person you need for the addiction you have for drugs, and making that realization. The use of the word "it" in the chorus confuses the listener into not know if "it" refers to drugs or the significant other, which I think what the singer wants. To have the listener be just as confused about what they want/need. The singer doesn't know whether they need the feelings that drugs give them, or the feeling that love gives them, more.