I've completed the game with every character, but haven't gotten any achievements

I know the point is to show the Megaricus' force field, but it being used to separate the two of them feels super unromantic would be better if the forcefield was outside of them and sandwiching them both instead, as if they want a private room for themselves, but that might just be me....

is it time based or getting a perfect date every time?

I don’t quite understand why the achievement isn’t unlocking. I’ve gone on several perfect dates with the kaiju but it still won’t unlock. Am I doing something wrong?

I'm kinda worried that there is no correct answer to Seadora's "How do I look?" question.