It all started your 5th year when you met a hufflepuff male. You two weren’t really talking to each other as you both would start an awkward conversation firsthand. You two then had to duel against each other in DADA, he won which made him feel bad and help you up. Of course you reassured him that you wasn’t that hurt and such. He felt calm and decided to introduce himself. After that you two see each other often around Hogwarts and completely hang out sometimes. This is your hufflepuff companion.