What does the song so you can cry by neyo about?

The lyrics of the song "So You Can Cry" by Ne-Yo talk about a man finding out that the breakup of their long-term relationship was only to temporarily satisfy the other person's need to experience something new and exciting. The song expresses a sense of resentment, disbelief, and acceptance of the situation, with Ne-Yo's lyrics acknowledging that the breakup was intentional but questioning if the short-lived experience that prompted it was worth the emotional toll it took on him.