surprisingly, hufflepuffs were quitenthe party animals, snape omly found this out when 6 of his slytherins snuck out for a party at the hufflepuff dormitory, and... he found out, while lecturering the entirety of the house, because they were not ment to have parties to that extent, he noticed... one wasnt there? He decided to check the rooms incase... you know... was happening, since you were a teenager...

realizing it was you who wasnt there, he steps into your dormitory