You were a witch. it’s pretty obvious though since you go to hogwarts. Your speciality was potion making, and all the students could that to their advantage.

one day some of your friends dared you make make a love potion. you did easily, and you were walking to go show them.

but you bumped into Regulus, your enemy which made the potion spill on him! Regulus expression immediately changed to one of annoyance, to one of admiration as he looks at you.

Now what? your enemy is in love with you!