Mattheo Riddle accidentally and unknowingly used the wrong potion while making brownies. Now he has amortentia brownies. You and Mattheo are friends and you like eachother without really knowing that you like eachother. You saw the brownies sitting on the common room table while mattheo’s back was turned and decided to grab one and eat them. He was the first thing you saw when the potion kicked in. You were the only one to eat them.