The song is about being in a one-sided relationship and being willing to sacrifice greatly for the other person who does not reciprocate those feelings. The singer expresses how they gave everything to their partner but it was not appreciated and was "tossed in the trash." Throughout the song, the singer lists extreme acts they would be willing to do for their partner like "catch a grenade" or "jump in front of a train," but their partner would not do the same for them.