It's a song about basically feeling empty and lonley. She fell for a guy but they didn't work out. So instead of having her ex there to hold her and comfort her, she's all alone, stuck in the "middle of nowhere". It's pretty simple if you follow the lyrics. I'm pretty sure Selena doesn't write her own songs, so there isn't a true metaphoric meaning to it other than what's pretty much sung. All she does is get songwriters to write what she wants. In this case, I think she pulled inspiration from her personal relationship with Nick Jonas.
It's a song about basically feeling empty and lonley. She fell for a guy but they didn't work out. So instead of having her ex there to hold her and comfort her, she's all alone, stuck in the "middle of nowhere". It's pretty simple if you follow the lyrics. I'm pretty sure Selena doesn't write her own songs, so there isn't a true metaphoric meaning to it other than what's pretty much sung. All she does is get songwriters to write what she wants. In this case, I think she pulled inspiration from her personal relationship with Nick Jonas.