Matilda is the tetartagonist of Angry Birds movie. She is the former Anger Management Teacher of Red, Chuck, Bomb, and Terence. At the end of the movie, she reciprocates Terence's feelings for her.
Matilda was Terence's former anger management teacher. During their classtime, Terence developed a crush on her, and even painted her and him together, which creeped Matilda out. She quickly told class was dismissed and ran away out of embarrassment.
In the end they become boyfriend and girlfriend, with Matilda finally reciprocated her feeling s for him by leaning up against him.