Are you sure you are not thinking of the restaurant scene? Because that one has a yellow option locked behind exhibitionism, and it doesn't appear in the gallery, so it's actually a one-off... But there are no yellow options in the clocktower scene.
Unless it's removed entirely if you don't meet the prereqs, but usually that isn't how it works.
Edit: tested on a fresh game, and nope, that was correct, and indeed you don't get it in the Gallery on replay.
There is a yellow option that is unlocked at, I think, Exhibitionism 11.
So, yes, it is technically possible to miss content.