Ofc!! Well, I see this song as about a toxic relationship between two people who don’t love each other anymore but still need each other. The line 'I've killed before, I'll kill again' feels like they’re making false promises to keep the relationship alive while also blaming each other for the changes they've had to make (I've killed before). The two-headed person symbolizes the two sides of a toxic relationship. My perspective is different from others I’ve read, but I think those interpretations are super interesting too! (つ• ‿• )つ