Complex sentence: The song was written by Lifehouse lead singer Jason Wade and American record producer Jude Cole, who felt that the message of the song dealt with how difficult it could be to be in a relationship.
Split into simpler sentences: The song was written by Lifehouse lead singer Jason Wade and American record producer Jude Cole. When discussing the song, Wade felt that the message of the song dealt with how difficult it could be to be in a relationship.