Surprised nobody has nailed this one yet. (Not that many have tried...)
It's pretty straightforward - his relationship is ending. It was a very tough decision but he now knows with conviction that it is over. "Box Elder" is just another way of saying something like "Bumblefuck" or "Anywhere but here". As in "I don't care where I go next, as long as it isn't in the same town as you". You could even interpret the last line as something like "I want out of here so bad that I'm taking the next bus out of town wherever it may go... and it happens to be going to Box Elder".
Surprised nobody has nailed this one yet. (Not that many have tried...)
It's pretty straightforward - his relationship is ending. It was a very tough decision but he now knows with conviction that it is over. "Box Elder" is just another way of saying something like "Bumblefuck" or "Anywhere but here". As in "I don't care where I go next, as long as it isn't in the same town as you". You could even interpret the last line as something like "I want out of here so bad that I'm taking the next bus out of town wherever it may go... and it happens to be going to Box Elder".