The real meaning behind Harry calling Zayn an Zebra, unseen moments from backstage. The reason i feel they weren't allowed to talk about it is because in both boys album they talk about not being able to talk about it not being able t be with someone and not being able to resist, scilene. If they were talking about i dont know, Perrie? Zayn wouldn't have to hide it and try to resist and not talk about it. Harry talks about being left alone, needing to continuously dodge the bullets which zayn also refrences. Now im full aware and prepared for Larry to send hate and say that Harrys songs are in fact all about louis, then ok if they were about Louis thats fine. Though the fact Zayn and Harry are pretty much explaining the same story, similar lyrics, not to mention Harry's 'just a little bit of your heart' Zayn took the chorus and named his song 'fool for you'. So with all the evidence and proof i'd lean towards not about Louis.