7:09 Yup you got it there. It take us a while to figure it out too. Charlie is like Chaeyeon's darkside kinda part, so sometime your darkside just comes out, but sometime you don't want it to come out, and sometime you need it, hence the lyrics, "Call me Chaerlie Dont", "Stop don't call me", " Please call me Charlie". But at the end of the day, she said the lyrics can be view to many ways, so suit the listener to what they want to believe. Edit: I like how you trying to figure things out, great video.