In Cam's song "Diane," the narrator is apologizing to a woman named Diane for unknowingly becoming involved with her man. She expresses regret and remorse for not realizing he was married, and she wishes she could give back the time and affection he gave to her. The song reflects the guilt and responsibility felt by the narrator, who wants Diane to understand that she did not knowingly betray her. The lyrics convey a sense of empathy and regret, as the narrator grapples with the repercussions of being involved with someone else's partner.