Well, I still thought the secret was perfectly well implied: Despite all the main character pairings, my favorite OotS couple is the two grunts.

You're telling me that if I'd had "...but this is my" above the OTP image it would have been a secret? I'm sorry, that's just silly; I left that out because that's how I wanted the secret to look from a visual standpoint but it doesn't make it any less implied.

Perhaps I'm biased, but I can't see how adding four words changes the image so drastically.