Sadly, I don't have a save file ready to go with all the dances unlocked. The two opportunities gate was meant to encourage players to choose carefully and replay the game to see other routes in conversation, but I totally get how it's frustrating, especially because it isn't clearly telegraphed. I'll talk over what a patch could look like for this with our programmer, but I'm neck deep in two new projects so it'll be something that unfortunately comes later rather than sooner. Until then, a speedrun through the dates again might be the quicker way to unlock for now. :(