The Lady or the Tiger
I think the princess chose the door of the tiger because she is a selfish and mean person. Also, if she chose the door of the beautiful lady, he will marry the lady. The princess loves him so much that she does not want to hand him over to the lady. When she images him marrying the lady, her jealousy escalates. Her unkind feelings increase with her selfishness. Even if he was killed by the tiger, she does not want to let him marry the beautiful lady.