I tried following the Jace/Stephanie walkthrough and no matter what I do I get the Romantic Ending (even if I'm picking the Dramatic Ending choices) and there are three CGs missing in her gallery (I'm assuming there's meant to be a CG in the Romantic Ending because atm their final amusement park date just ends abruptly with a 'Romantic End' text and no CG?)
The last unlocked CG is the ice skating CG, the last 3 are locked.