From the album Trying Times
This is about holding it together just barely enough to stay with someone who might be the only thing keeping you functional. Blake writes exhaustion as a physical state, something that degrades you like polystyrene crumbling under pressure, and the person he's singing to becomes less romantic and more structural, the scaffolding that keeps the whole thing from collapsing.
You know I'm shredded by the time I'm home / Like polystyrene foam
Polystyrene is an incredibly specific choice. It doesn't just break, it disintegrates into something useless and impossible to reassemble. Blake is saying the work of getting through the day leaves him in pieces that can't hold their original shape.
I'm breaking / I hide it well / 'Cause I can't afford to replace the shell
The shell isn't armor. It's the version of himself that can go outside and interact with people. If it cracks all the way through, he doesn't have the energy to build another one, so he's stuck managing microfractures and hoping they hold.
I'm an eyesore / You're a sight for sore eyes
He positions himself as something painful to look at and her as relief from that pain. The phrasing makes it mutual without being equal. She's life-giving, he's life-draining, and he knows it.
I would die for / Be terrified for / Simplify for
The shift from die to terrified to simplify drops the romance and shows what love actually costs him. Simplify might be the heaviest word here. It means giving up parts of yourself to make room for another person when you're already running on fumes.
Trying, trying, trying
Just the word itself, repeated until it stops meaning effort and starts meaning survival. No resolution, no breakthrough, just the act of continuing.
Blake writes exhaustion better than almost anyone working right now. This isn't a love song about overcoming hard times together. It's about needing someone because you're too worn down to function alone, and knowing that need might be the only thing holding you upright.