The song is basically about how some people "like" or have feelings for other people, but the ones they like don't ever like them back, and maybe someone likes the singer, but he doesn't like them. It's just a way of saying we don't always get the people we "like" or have feelings for. "Don't you get hurt" simply means to be careful and not put yourself out there too much, and an even deeper interpretation is to maybe give a person that likes you, but you just think is "okay", a chance to be with you, but in the end, be sure to be careful and don't let your guard down easily.
The song is basically about how some people "like" or have feelings for other people, but the ones they like don't ever like them back, and maybe someone likes the singer, but he doesn't like them. It's just a way of saying we don't always get the people we "like" or have feelings for. "Don't you get hurt" simply means to be careful and not put yourself out there too much, and an even deeper interpretation is to maybe give a person that likes you, but you just think is "okay", a chance to be with you, but in the end, be sure to be careful and don't let your guard down easily.