You can unlock all options and keep their respective unlocks on the saveahhh, I think that was what I was missing, didn't know you could flat out repeat the Resort day to unlock the options for everyone. I thought it was save and pick one, I get it now though.
I don't ever want to have scenes that are inaccessible because of a choice, even if one becomes unavailable for some reason, I'll make sure the gallery unlocks them past that point anyways.