No one ever seems to point this out so I want to. In Cart Before the Ponies after everyone crashes into each other, Diamond Tiara’s first and only concern is the Randolph’s well-being and she is angry at AJ, Rare, and RD for putting him in danger. Her interactions with her butler in general have been positive and adorable in this episode. We didn’t get anymore Diamond Tiara after her reformation but I love little scene like this that solidifies she really has changed.