Pitch Perfect; The Treblemakers

Maddie's older brother is Uni. From the Treblemakers. She lives with the Treblemakers and her brother during the school year. Which naturally would lead to some romances. Well, Uni knew that would probably happen. So, he banned Maddie from liking or dating any of the Trebles. He likewise banned any of the Trebles from liking or dating Maddie. But Maddie disobeys her brother's wishes and dates one of the Trebles. Will she be able to keep it a secret? Or will Uni find out and will she lose her brother's trust?