Yeah I agree with what has been said for the most part, this song is about enduring suffering for quite some time, silently for the sake of the partner the person singing the song is in love with. But in the end the person can only take so much without calling it quits, until being forced to realize that things just can't go on that way anymore. They can't continue acting and pretending everything is alright and that they aren't suffering. Personally I think this is a great song which a lot of people could relate to.