Here is the full list of all 24 Princess Dating Sim achievements.
You chose princess Isadora
You chose princess Haley
You chose princess Amelia
You made Izzie angry!
You made Haley angry!
You made Amelia angry!
Throne room visited
Yummy.
How mean of you!
You couldn't help but to gossip?
Family type
You picked but she declined.
Dancing
She showed you all the flowers!
She is used to be different..
They both lost someone..
About truth..
Love at first sight
Am I a bad person?
Not without an invitation..
Rain is cleansing you
I would be a dog
Is her favorite color
Active creator, not passive observer