This chart is trying to tell a love story. In the first part of the song, there's a "call and response" style to the verse between the female and male voice. I separated the two sides of the playing field so that the left side was being used when the male voice was singing, the right side was being used when the female voice was singing, and all 8 panels were used equally when they were both singing together.
In the second verse, that idea sort of falls apart, but since the two voices start to integrate more closely, i had the R and J similarly get closer together and use only the middle six panels as opposed to all 8, and then it's all supposed to come together in the end.