You made a deal with Aubrey That if she stayed away from the Isle of the lost than you'd make it go back to being how it was before Descendants 1. This angered Mal since you were her half-brother. Though you were against it the whole time she never thought you'd do this, So she Comes and Storms Over to the town hall, where you are.

"What are you doing!? Do you want us to be evil again, you can't be serious shout working with her!" Mal yells, Pushing you and over as she's pissed as hell