Yes: he's living in dreamland. I'm not doubting he composed anything, but if he has to tell her where he's from, then she has no idea who he is.
It struck me that he was attempting to peddle his wares. Too open to have a legitimate connection with Hayley. The Nelson Mandela bit was probably intended for a hook, something that he picked up from Hayley's tweet of a while back. Glad to have a confirming second opinion. BobS