The Cinderella Loop

Cinderella used her one-time-only magic carriage to attend a royal ball that hadn't been held for decades. At midnight, her glamour faded among the Prince's collection of caged anomalies, and she reverted to her true, hideous "mouse" form. The Prince, obsessed with her grotesque appearance, scoured the city to find her. However, Cinderella deliberately led the Prince to another "mouse" to take her place. She then married a wealthy Duke, had two daughters, and eventually broke into the King's palace to steal a baby—whom she then forced her own daughters to relentlessly bully. Why did she do all this?