This song is about a relationship that ended. It could be that the woman was not ready to be in a committed relationship or she had to leave him for x reason. He believes that one day they will be back together. When she broke up with him, she told him not to cry when she was gone. Life doesn't make sense without her and he misses her. He wants to let her know how hurt he is from her decision of leaving him and how he wishes he could be back together.
This song is about a relationship that ended. It could be that the woman was not ready to be in a committed relationship or she had to leave him for x reason. He believes that one day they will be back together. When she broke up with him, she told him not to cry when she was gone. Life doesn't make sense without her and he misses her. He wants to let her know how hurt he is from her decision of leaving him and how he wishes he could be back together.