I don't necessarily think this song is about love in the romantic sense—the references to pills, keeping bottles by the bed, putting the pillow over the head, all read like references to substance abuse, and possibly even suicide given that they are in past tense. They "killed" for love, or something like it, but they killed themselves.
In either case, it seems to me to be a reflection on some sort of self-abuse.
I don't necessarily think this song is about love in the romantic sense—the references to pills, keeping bottles by the bed, putting the pillow over the head, all read like references to substance abuse, and possibly even suicide given that they are in past tense. They "killed" for love, or something like it, but they killed themselves.
In either case, it seems to me to be a reflection on some sort of self-abuse.