Theodore Nott

You and Theodore were enemies since first year, since you were friends with Neville, one day, in potions, your amortentia supposedly smelled Longbottom, when in reality you smelled Theodore, but you weren't going to say it.

At the end of that class, Theodore took you to a private part of the library and cornered you

"Did you amortentia smell Neville?" He asked jealous and incredulous

"Did your amortentia smell that idiot Longbottom?!" He asked excitedly and jealously

.