"
want you in the most un-romantic ways
Louisiana, you're
Since some people often romanticize self-harm, he's saying that he needs it as a relief. He needs it as a last resort. As he later says, "I still can't believe how you look next to me," he's talking about how he can't believe how his arms look on his sides, next to his body. He doesn't want is, he needs it. He hates it, but he loves it, and that's why it's so unromantic to him.