Here's an interview where they talked about the song:
“Broken Mess” is tragic in the beginning and yet very hopeful at the end. Can you tell us the story behind this song?
Matt: Yeah, unfortunately it’s about something that happened to my brother. I don’t want to get into details about it, but it’s my response to a pretty dramatic situation that happened to him. I was on the road when I wrote it… I wrote it in 5 minutes into my phone as my mind was racing after learning some new stuff he had gone through. So I typed it all into my phone and I think we were at a show the next day and I sat in the trailer with an acoustic guitar and figured it out. I think when a lot of tragic things happen to me I put it in a song and I put it in a box so that it doesn’t haunt me. That’s like my grief. If I have it in a song then it’s there if I need to go to it. It won’t consume me on the inside it will be on the outside. So that was sort of like a grieving song, but at the same time there’s hope. And there’s reconciliation in my brother’s situation right now, so things are looking positive. So I definitely wanted to highlight that opportunity at the end of the song, for sure.
Here's an interview where they talked about the song:
“Broken Mess” is tragic in the beginning and yet very hopeful at the end. Can you tell us the story behind this song?
Matt: Yeah, unfortunately it’s about something that happened to my brother. I don’t want to get into details about it, but it’s my response to a pretty dramatic situation that happened to him. I was on the road when I wrote it… I wrote it in 5 minutes into my phone as my mind was racing after learning some new stuff he had gone through. So I typed it all into my phone and I think we were at a show the next day and I sat in the trailer with an acoustic guitar and figured it out. I think when a lot of tragic things happen to me I put it in a song and I put it in a box so that it doesn’t haunt me. That’s like my grief. If I have it in a song then it’s there if I need to go to it. It won’t consume me on the inside it will be on the outside. So that was sort of like a grieving song, but at the same time there’s hope. And there’s reconciliation in my brother’s situation right now, so things are looking positive. So I definitely wanted to highlight that opportunity at the end of the song, for sure.
source: http://www.tostartafire.com/blog/an-interview-with-the-classic-crime/