It's a song about a co-dependent relationship.
The narrator is both deeply in love with a girl, but at the same time very dependent on a drug/alcohol/behavior that the girl is also addicted to.
And sometimes when he sees the temptation, it gets hard to for him to tell which one of the two is what tempts him: the girl or the drug? Is the excitement he feels the true love for his girl or the rush that the drug gives him? At some point, both feelings become so extreme and entrancing that he starts feeling like kissing the girl and doing the drug gives him the same strong response.
In the end, all that matters is his heartbeat being accelerated, be it from his lover or his drug. It's all the same in the end, and the feelings merge into one.
It's a song about a co-dependent relationship. The narrator is both deeply in love with a girl, but at the same time very dependent on a drug/alcohol/behavior that the girl is also addicted to. And sometimes when he sees the temptation, it gets hard to for him to tell which one of the two is what tempts him: the girl or the drug? Is the excitement he feels the true love for his girl or the rush that the drug gives him? At some point, both feelings become so extreme and entrancing that he starts feeling like kissing the girl and doing the drug gives him the same strong response. In the end, all that matters is his heartbeat being accelerated, be it from his lover or his drug. It's all the same in the end, and the feelings merge into one.