Songs about wanting someone you can't have?

So i like this guy and we are friends with benefits but i know he doesn't want to be in a relationship. I need a song that is about wanting something you can't have, but i don't want it to be too obvious of what it is about so not like some love story like Taylor swift songs or avril lavigne or people kinda like that. Something more like jack johnson, modest mouse, more alternitive songs? Thank you!